Sources & methodology
How CleaningHQ decides what to publish, what each evidence label means, and every source in the register.
Two separate questions
CleaningHQ never merges “does it work?” with “is it safe?”. They are genuinely independent: a technique can be highly effective and ruin the surface it is used on, and a harmless technique can do nothing at all. Every assessment therefore carries two verdicts, and neither is allowed to soften the other.
How well supported is it?
- Strongly supported
- Supported
- Plausible mechanism, untested in this application
- Established practitioner practice
- Anecdotal
- Disputed
- Does not work
- Unresolved
There is no numerical confidence score anywhere in CleaningHQ, and none will be added. A single number invites false precision and hides exactly the uncertainty these labels exist to expose. “Established practitioner practice, mechanism plausible, not experimentally isolated” is something you can act on; “0.72” is not.
Is it safe?
- Safe in the conditions described
- Authoritative guidance supports this combination, within the conditions described below.
- Safe only in specific conditions
- This is only appropriate within specific limits. Outside those limits, CleaningHQ makes no claim.
- Depends on the manufacturer
- This depends on the specific product or finish. Check the manufacturer's own instructions before proceeding.
- Not established
- CleaningHQ has not established whether this is safe. That is not the same as it being safe — it means the evidence needed to answer has not been found. Do not treat this as permission to proceed.
- Best avoided
- The available guidance advises against this.
- Unsafe
- Do not do this. The risk is established, and it is described below.
What we will not publish
- Concentrations, quantities or conditions for any hazardous reaction. Our safety records describe what happens and why to avoid it, and stop there.
- Recipes for combining cleaning substances. We explain what individual substances do.
- A safety claim resting on anything less than a regulator, a standards body, a poison or chemical-safety authority, scientific literature, a manufacturer, or a recognised trade or professional body. A claim without one of those does not get published with a caveat; it does not get published.
- Pages generated by combining data points. A relationship existing in our model does not earn it a URL.
Verification, stated honestly
Every source below is recorded as either citation checked— the work exists and is described correctly — or passage verified, meaning a person has read the specific passage relied on. 106 of 116 sources are passage verified. The remaining 10are not, because they are sold rather than published, sit behind a subscription, or are served by a host that refuses automated retrieval — and not one of them was upgraded on the grounds that the work plainly exists and plainly says roughly the right thing. Where a source has not been read, the register records exactly which passage a verifier must read and what to do if it turns out to support something narrower than we have claimed.
Where a passage hasbeen read, the entry says what it actually found. Sometimes that is confirmation. Sometimes it is not: reading The Woolmark Company’s guidance told us that bleach is advised against on wool in both its chlorine and oxygen forms, not only chlorine as we had recorded, so we widened the claim. Reading an accessible textile-industry explanation of care symbols failed to confirm a distinction we had asserted from an unread standard, so we withdrew it. Those entries are shown rather than quietly corrected, because a reference list that only ever confirms itself is not evidence of checking.
One rule follows from all of this and governs the rest of the site: we will not tell you that something is safe to use on something else on the strength of a source nobody has opened. Warning you costs an unnecessary precaution if we are wrong. Clearing you costs the damage.
We do not reproduce source text. CleaningHQ stores structured facts, provenance and its own explanations. Where a stable URL is not known, none is given: a guessed link is a fabricated citation with a link on it.
The source register
Dangers of Mixing Bleach with Cleaners
Washington State Department of Health · Government or regulator · Licence not established
A US state public health department's consumer page on mixing cleaning products. Read in full during the Sprint 2 verification pass.
US state government consumer health information. Facts restated; CleaningHQ writes its own explanations regardless. No text reproduced.
Hazard Alert — Worker Health and Safety: Mixing Bleach with Other Cleaning Products Can Be Deadly
New Jersey Department of Health, Environmental and Occupational Health Surveillance Program · Government or regulator · Licence not established
A two-page state health department hazard alert. Read in full during the Sprint 2 verification pass.
US state government publication. Facts restated only; the case reports are summarised, not reproduced.
Working with substances hazardous to health: A brief guide to COSHH
Health and Safety Executive (HSE), United Kingdom · Government or regulator · Open Government Licence
HSE guidance leaflet INDG136 supporting the COSHH Regulations 2002. The PDF was retrieved and read during the Sprint 2 verification pass; the edition and revision date are taken from the document itself.
TOXBASE, the clinical toxicology database of the National Poisons Information Service
National Poisons Information Service (NPIS), United Kingdom · Poison or chemical-safety authority · All rights reserved
The UK's clinical poisons database, provided to healthcare professionals. Existence and role confirmed. ACCESS IS RESTRICTED TO REGISTERED CLINICAL USERS, so its contents were not consulted in Sprint 1 or Sprint 2 and no CleaningHQ claim rests on it.
Access-restricted. Recorded here as the correct escalation route to name to readers, not as a source CleaningHQ can cite content from.
NIOSH Pocket Guide to Chemical Hazards
US National Institute for Occupational Safety and Health (NIOSH), CDC · Poison or chemical-safety authority · Public domain
A long-established US government reference giving exposure limits, physical properties and health effects for industrial chemicals. Existence and scope confirmed. RETRIEVAL WAS ATTEMPTED DURING SPRINT 2 AND REFUSED: the CDC host returned HTTP 403 to automated requests, so the chlorine and chloramine entries were still not read. The status is unchanged for that reason.
Still to verify: The chemical entries for chlorine and for chloramine. — must confirm: That chlorine and chloramine are recorded as respiratory irritants with established occupational exposure limits, and that the health effects described match CleaningHQ's plain-language summary.
US federal government work. Facts may be restated; CleaningHQ writes its own explanations regardless.
EN ISO 3758, Textiles — Care labelling code using symbols
International Organization for Standardization (ISO) · Standards body · Standard — purchase required
The international standard defining textile care symbols. Existence and subject confirmed. THE STANDARD IS SOLD RATHER THAN PUBLISHED and has not been purchased, so no clause has been read. It is no longer needed for anything: the symbol definitions CleaningHQ relies on are taken from GINETEX, which originated them and publishes them free.
Copyrighted standard sold by ISO and national bodies. Symbols and text must not be reproduced. CleaningHQ describes what a symbol means in its own words and does not render the symbol artwork.
ASTM A967/A967M, Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
ASTM International · Standards body · Standard — purchase required
An ASTM specification covering chemical passivation of stainless steel. Existence and subject confirmed; the specification is sold rather than published and was not purchased or read in either sprint.
Still to verify: The scope clause and the definitions of passivation treatments. — must confirm: That passivation is defined as a treatment producing a chromium-rich protective oxide film on the steel surface.
Copyrighted standard. No text reproduced.
Care and Maintenance of Stainless Steel
British Stainless Steel Association, Stainless Steel Advisory Service, 2001 · Trade or professional body · All rights reserved
A four-page technical information sheet from the UK stainless steel trade association's advisory service. Retrieved as a PDF and read in full during the Sprint 2 verification pass. The issue number and date are taken from the document's own header.
Freely distributed technical advice, all rights reserved. No text reproduced; the sheet's named proprietary products are deliberately NOT carried into CleaningHQ, which does not recommend brands.
Cleaning methods for stainless steel
British Stainless Steel Association · Trade or professional body · All rights reserved
The BSSA's web article version of its cleaning guidance. Read during the Sprint 2 verification pass and found to restate the content of information sheet 7.20, which is why it is recorded as a republication of it rather than as an independent source.
No text reproduced.
Care & Cleaning of Natural Stone
Natural Stone Institute · Trade or professional body · All rights reserved
The consumer care guidance of the US natural stone trade association. Read during the Sprint 2 verification pass. This is the accessible counterpart to the association's Dimension Stone Design Manual, which is sold and was not obtained.
No text reproduced. Facts and classifications restated in CleaningHQ's own words.
Dimension Stone Design Manual
Natural Stone Institute · Trade or professional body · All rights reserved
The reference manual of the US natural stone trade association. Existence, publisher and subject confirmed; the manual is sold to members and specifiers and was not obtained in either sprint.
Still to verify: The maintenance and cleaning chapter, sections covering calcareous stone. — must confirm: That acidic cleaners are advised against on calcareous stones such as marble, limestone and travertine, and that the reason given is chemical attack on the calcium carbonate rather than only dulling of a polish.
Best detergent to use when washing wool
The Woolmark Company · Trade or professional body · All rights reserved
Detergent-selection guidance from the global wool industry body. Read during the Sprint 2 verification pass.
No text reproduced.
Wool care: how to wash wool, and caring for wool
The Woolmark Company · Trade or professional body · All rights reserved
The washing and general-care guidance of the global wool industry body. Two pages were read during the Sprint 2 verification pass: the washing instructions and the general care page.
No text reproduced.
Washing instruction symbols explained
The Woolmark Company · Trade or professional body · All rights reserved
A textile industry body's explanation of care-label symbols, read during the Sprint 2 verification pass specifically to test whether the ISO 3758 bleaching distinction could be confirmed from an accessible source. It could not.
No text reproduced. CleaningHQ does not render care-symbol artwork.
Top tips for keeping your stove glass clean
HETAS Limited, United Kingdom · Trade or professional body · All rights reserved
Consumer advice from HETAS, the UK body approving solid-fuel appliances, fuels and installers. Read during the Sprint 2 verification pass. This is the specific article the Sprint 1 record was hoping existed.
HETAS guidance for users of solid fuel and wood-burning appliances
HETAS Limited, United Kingdom · Trade or professional body · All rights reserved
HETAS's general user guidance, as distinct from the specific stove-glass article. Existence and role confirmed; the general guidance hub was not read as a whole during either sprint, and the specific claims that mattered were verified against the stove-glass article instead.
Cleaning product science and ingredient information
American Cleaning Institute (ACI) · Trade or professional body · All rights reserved
The US cleaning products trade association, which publishes explanatory material on surfactants, builders and cleaning chemistry. Existence and role confirmed. RETRIEVAL REFUSED TWICE: HTTP 403 to automated requests in Sprint 2, and again in Sprint 28 on two document paths. The restriction was not worked around either time, and no page has been read.
Industrial washing conditions as factor that influence the cellulose structure and mechanical strength of bed linens
Scientific Reports (Nature Portfolio), 2023 · Scientific literature · Creative Commons
A peer-reviewed open-access study by Izabela Jasińska (Łukasiewicz Research Network, Łódź Institute of Technology) measuring what repeated laundering does to cotton. Abstract, results and conclusions read during the Sprint 2 verification pass.
Open access. Findings restated and paraphrased; no text or figure reproduced. The numerical results are the authors' and are attributed as such wherever they appear.
How to clean wood burner glass
Charnwood (A J Wells & Sons Limited) · Manufacturer documentation · All rights reserved
Cleaning guidance published by a UK wood-burning stove manufacturer for its own appliances. Read during the Sprint 2 verification pass.
Manufacturer guidance for that manufacturer's appliances. Never generalised to other makes — CleaningHQ records it as manufacturer evidence and says whose.
Wood burning stove door glass — cleaning tips
Stovax & Gazco (Stovax Heating Group) · Manufacturer documentation · All rights reserved
Cleaning guidance published by a UK stove manufacturer for its own appliances. Read during the Sprint 2 verification pass, specifically to test whether manufacturers agree with one another on this technique.
Manufacturer guidance for that manufacturer's appliances. Never generalised.
Kirk-Othmer Encyclopedia of Chemical Technology
John Wiley & Sons · Reference work · All rights reserved
A standard multi-volume industrial chemistry reference. Existence and standing confirmed; access requires a subscription and no article was read in either sprint.
Still to verify: The articles on surfactants, on chelating agents and on bleaching agents. — must confirm: That surfactant action is described in terms of amphiphilic molecules reducing interfacial tension and forming micelles, and that chelation is described as multidentate binding of metal ions.
Subscription reference. No text reproduced.
Handbook of Detergents (Surfactant Science Series)
CRC Press / Taylor & Francis · Reference work · All rights reserved
A multi-part reference series on detergent properties, formulation and application. Existence and publisher confirmed; volumes were not consulted in either sprint.
Still to verify: The chapters covering builders, water hardness and enzyme use in detergency. — must confirm: That water hardness is described as reducing detergency through interaction of calcium and magnesium ions with surfactants, and that builders and chelants are described as addressing this.
Royal Society of Chemistry educational and reference chemistry resources
Royal Society of Chemistry · Scientific literature · All rights reserved
The UK's professional body for chemistry, which publishes peer-reviewed journals and educational reference material. Existence and standing confirmed; specific items were not identified or read in either sprint, which is why this source is not permitted as sole support for anything.
Table of Textile Care Symbols
GINETEX, The International Association for Textile Care Labelling · Standards body · All rights reserved
The official symbol table of the association that owns the care-labelling trademarks and devised the system. Published free as a PDF and read in full during the Sprint 3 verification pass.
The symbols are registered international trademarks (WIPO 211.247, 492.423, 849.320 among others). CleaningHQ describes in words what each symbol means and DOES NOT REPRODUCE THE ARTWORK. No text is reproduced.
GINETEX Technical Booklet — international care labelling system
GINETEX, The International Association for Textile Care Labelling, 2018 · Standards body · All rights reserved
The technical regulations behind the care-labelling system, published free. Retrieved as a PDF and read during the Sprint 3 verification pass; the version and date are taken from the document's own footer.
Trademarked symbol system. No artwork reproduced, no text reproduced.
Cleaning Grout
Tile Council of North America (TCNA) · Trade or professional body · All rights reserved
Consumer guidance from the US tile industry trade association, which also publishes the TCNA Handbook for tile installation. Read during the Sprint 3 verification pass.
Remove Stains from Stone Applications
Natural Stone Institute · Trade or professional body · All rights reserved
The stain-removal counterpart to the association's care guidance, read during the Sprint 3 verification pass specifically to find whether an authority states a method for hard-water deposits on acid-sensitive stone. It does.
Right to Know Hazardous Substance Fact Sheet: Sodium Hydroxide
New Jersey Department of Health, Right to Know Program · Government or regulator · Licence not established
A US state government hazardous substance fact sheet, publicly published. Retrieved as a PDF and read during the Sprint 3 verification pass, specifically to clear the safety-bearing debt on the alkali-attacks-aluminium claim.
US state government publication. Facts restated; no text reproduced. Occupational in framing — CleaningHQ does not restate its exposure limits on a consumer page.
How to Clean seasoned cast iron
Lodge Cast Iron (Lodge Manufacturing Company) · Manufacturer documentation · All rights reserved
Care guidance published by a cast iron cookware manufacturer for its own products. Read during the Sprint 3 verification pass.
Manufacturer guidance for that manufacturer's cookware. Never generalised to enamelled cast iron, which the same manufacturer covers separately and differently.
Maintenance, and How to Clean and Take Care of Your Wood Floors
National Wood Flooring Association (NWFA) · Trade or professional body · All rights reserved
Consumer maintenance guidance from the US wood flooring trade association. Two pages read during the Sprint 4 verification pass: the maintenance guidance and the homeowner care article.
Cleaning and Maintenance
The Carpet and Rug Institute (CRI) · Trade or professional body · All rights reserved
Consumer and facilities guidance from the US carpet industry trade association, which also publishes the CRI 204 and 205 maintenance standards. Read during the Sprint 4 verification pass.
Mold Cleanup in Your Home
United States Environmental Protection Agency (EPA) · Government or regulator · Public domain
Federal environmental regulator's consumer mould guidance. Acquired and read in Sprint 5 to give the mould record an authoritative basis rather than general reasoning.
Care and Maintenance: Caesarstone Surfaces
Caesarstone Ltd. · Manufacturer documentation · All rights reserved
Care guidance from a principal manufacturer of engineered quartz surfacing. Acquired in Sprint 5 because engineered quartz is now among the most common domestic worktops and the catalogue had no record for it at all.
A manufacturer writing about its own product, so it is authoritative on what its warranty permits and not a neutral finding about engineered quartz generally. Where CleaningHQ generalises beyond Caesarstone it says so.
Spot Solver: spot and spill removal procedures
The Carpet and Rug Institute (CRI) · Trade or professional body · All rights reserved
The trade association's per-stain treatment database, distinct from its general maintenance guidance. Acquired in Sprint 5 as the evidential basis for the stain records, which previously rested on general method rather than named treatments. Re-opened in Sprint 30 to establish its extent, which nobody had done in twenty-five sprints.
CleaningHQ does not reproduce the dilutions as instructions to follow. They are recorded here because the precision is the evidence — a trade body specifying a quarter teaspoon and forbidding anything stronger is making a claim about what damages carpet, and that claim is what the catalogue uses.
Cultivation-Based Quantification and Identification of Bacteria at Two Hygienic Key Sides of Domestic Washing Machines
Microorganisms (MDPI), 2021 · Scientific literature · Creative Commons
Peer-reviewed study by Jacksch, Zohra, Weide, Schnell and Egert. Acquired in Sprint 5 so the washing-machine records rest on measurement rather than on the folk wisdom that dominates this topic.
The paper quantifies contamination; it does not evaluate any cleaning treatment. CleaningHQ therefore uses it for WHERE the problem is and not for what removes it, and the difference between the top and bottom of the same door seal is the part worth carrying: it is a drainage and drying finding, which points at a physical answer rather than a chemical one.
Technical Bulletin: Cleaning and Maintenance of Laminate Floor Coverings in the Home
EPLF — Association of European Producers of Laminate Flooring, 2022 · Trade or professional body · All rights reserved
The European laminate industry's own consumer technical bulletin. Acquired in Sprint 6; laminate is among the most common domestic floors and the catalogue had no record for it.
European scope, and explicitly non-binding by its own terms. It speaks for its member producers rather than for every laminate sold anywhere, and it defers to the individual manufacturer — CleaningHQ carries that deference rather than presenting the bulletin as the last word.
Glass Technical Paper FB01-00: Proper Procedures for Cleaning Architectural Glass Products
National Glass Association (NGA) with the International Window Cleaning Association (IWCA), 2023 · Trade or professional body · All rights reserved
The glass industry's technical paper on cleaning, written for professional window cleaners. Acquired in Sprint 6 to give glass and shower screens a basis better than general reasoning about hardness.
Written for architectural glazing and professional cleaners. The chemistry and the grit mechanism carry over to domestic glass; the building-scale procedure does not, and CleaningHQ takes only the former.
Glass Technical Paper FB06-05: Proper Procedures for Cleaning Flat Glass Mirrors
National Glass Association (NGA), Mirror Division, 2019 · Trade or professional body · All rights reserved
The mirror division's care paper. Acquired in Sprint 6 and it turned out to contradict the single most repeated piece of domestic glass advice.
Silk Care
Drycleaning & Laundry Institute International (DLI) · Trade or professional body · All rights reserved
The professional garment-care body's guidance on silk. Acquired in Sprint 6 and it closes an evidence gap first recorded in Sprint 3.
A professional drycleaning body has an evident interest in recommending professional drycleaning. That does not make the failure modes it lists wrong — they are specific and checkable — but CleaningHQ states the interest rather than presenting the recommendation as disinterested.
Care & Cleaning Instructions
KALLISTA (Kohler Co.) · Manufacturer documentation · All rights reserved
A single manufacturer document covering chrome, PVD and powder-coated finishes, acrylic, enamelled cast iron, brass and copper. Acquired in Sprint 6 as the anchor for bathroom materials, which Sprint 5 failed to deliver.
A manufacturer speaking for its own finishes and its own warranty, not a neutral finding about chrome or acrylic in general. It names proprietary products CleaningHQ does not reproduce as recommendations. Where the catalogue generalises past this document it says so.
Care & Cleaning: Toilets or Lavatories Made of Vitreous China
STERLING (Kohler Co.) · Manufacturer documentation · All rights reserved
Manufacturer care sheet for vitreous china sanitaryware. Acquired in Sprint 6; the toilet and basin had no material record at all.
Manufacturer scope. The permission for soft abrasives is granted for this maker's glazed vitreous china and must not be carried across to acrylic, enamel or plated fittings, which the same company's other sheet explicitly protects from abrasives.
Porcelain vs. Non-Porcelain
Tile Council of North America (TCNA) · Trade or professional body · All rights reserved
The tile trade body's definition of porcelain. Acquired in Sprint 6 because the catalogue treated tile as one material when the trade defines two by a measurable threshold.
Technical Procedures: Cleaning of Copper Alloy Objects
United States General Services Administration (GSA), Historic Preservation · Reference work · Public domain
A US federal agency's conservation technical procedure for copper and brass. Acquired in Sprint 6; recorded as a reference work rather than a regulator because the agency is not regulating cleaning, it is documenting a maintenance procedure for its own estate.
Written for historic and architectural metalwork, where the patina is part of the object's value. A domestic copper pan is not a heritage object and its owner may legitimately want it shiny. CleaningHQ uses this for the mechanism — that polishing removes metal and detail, and that patina is not dirt — and does not import the conservation ethic as a cleaning instruction.
Safety Data Sheet: Sodium Carbonate
Murphy and Son Ltd · Manufacturer documentation · All rights reserved
A supplier safety data sheet, acquired in Sprint 7 for one specific purpose: to put the sodium carbonate and aluminium edge on evidence somebody has read. Four sprints of audit notes pointed at that edge.
An SDS is authoritative about handling and incompatibility and silent about cleaning outcomes; CleaningHQ uses it for the compatibility fact alone. SDS content for a common chemical is largely standardised across suppliers, which is a reason to trust the fact rather than this supplier.
Leather Care and Cleaning Guide
The Leather Institute, 2011 · Trade or professional body · All rights reserved
Acquired in Sprint 7 to open leather and suede, which the catalogue had no record of at all. Read as a PDF extracted locally; the document is not reachable as text.
HEAVILY COMMERCIAL: it names its own branded products throughout and says only those are acceptable. CleaningHQ takes the prohibitions, mechanisms and technique, which are specific and checkable, and reproduces no product recommendation.
Right to Know Hazardous Substance Fact Sheet: Chlorine
New Jersey Department of Health · Government or regulator · Public domain
Acquired in Sprint 8 as the readable route to the chlorine facts the NIOSH Pocket Guide was cited for. Same regulator tier, freely published as a PDF.
Workplace exposure limits are occupational and are not thresholds for domestic safety. CleaningHQ uses this for the hazard character and the odour warning, and publishes no concentrations as guidance.
Right to Know Hazardous Substance Fact Sheet: Ammonia
New Jersey Department of Health · Government or regulator · Public domain
Acquired in Sprint 8 to put the ammonia half of the mixing hazard on a substance-level regulator sheet rather than only on a hazard alert about products.
The sheet addresses ammonia as a substance, including anhydrous ammonia, rather than household ammonia solution. It establishes the chemistry of the incompatibility; the domestic exposure scenario comes from the hazard alert already held.
Right to Know Hazardous Substance Fact Sheet: Chloroform
New Jersey Department of Health · Government or regulator · Public domain
Acquired in Sprint 8. The catalogue recorded that bleach and alcohol form chloroform and had nothing on what chloroform is, which left the consequence half of that hazard unevidenced.
Establishes what chloroform is and why its formation matters. It does not address the domestic quantity produced by mixing cleaning products, and CleaningHQ does not infer one.
Owner's Manual: Dishwashers GSD4500, GSD4800
GE Appliances · Manufacturer documentation · All rights reserved
Acquired in Sprint 8. Bosch and Miele support pages refuse scripted retrieval; this manufacturer publishes owner's manuals as open PDFs on a documents path, which is the same class of evidence by a reachable route.
SCOPE MATTERS SHARPLY HERE. This is one manufacturer's guidance for two named models. The bleach instruction in particular must not be generalised: dishwasher tubs are made in plastic and in stainless steel and the guidance does not state which this is, so CleaningHQ records the instruction as model-scoped and does not carry it to stainless interiors.
Owner's Manual: Microwave Oven, models JEM31 and PEM31
GE Appliances · Manufacturer documentation · All rights reserved
Sprint 27 acquisition. The microwave was the largest uncovered appliance in the ranking and the register held no source for it at all. Acquired from the manufacturer's own document host, after the alternative manufacturer's site refused automated access with a 403 that was not worked around.
One manufacturer and one appliance class. Facts restated; no text reproduced beyond short quoted instructions. The exterior ammonia-and-alcohol exclusion is stated as an APPEARANCE risk, not a safety one, and the catalogue records it at that scope.
Use and Care & Installation Guide: Self-Cleaning Electric Range
GE Appliances · Manufacturer documentation · All rights reserved
Acquired in Sprint 8 by the same open-documents route. The oven was the catalogue's largest appliance gap and its guidance contradicts an extremely common household practice.
One manufacturer, and specifically a SELF-CLEANING oven. The prohibition on commercial oven cleaner is stated in the context of a pyrolytic cycle whose residue interaction is the stated mechanism, and CleaningHQ does not extend it to ovens without that function.
Maintenance Instructions: Vinyl Composition Tile Flooring
Tarkett (Johnsonite / Azrock), 2016 · Manufacturer documentation · All rights reserved
Acquired in Sprint 8 after the RFCI trade bulletin proved unreachable. A manufacturer's maintenance instruction sheet for resilient flooring, reached as an open PDF.
Written for VINYL COMPOSITION TILE maintained by professionals with applied floor finish, which is a commercial specification rather than a domestic luxury vinyl plank. The chemical prohibitions and the pH-neutral requirement carry across to vinyl generally; the floor-finish regime does not, and CleaningHQ says so rather than presenting a commercial maintenance programme as household advice.
How to Clean Newly Painted Walls
The Sherwin-Williams Company · Manufacturer documentation · All rights reserved
Acquired in Sprint 8 after Dulux URLs 404'd. Painted walls are in nearly every room and the catalogue had no record for them at all.
Consumer guidance from a paint manufacturer, written about newly painted walls. It does not distinguish matt from satin or gloss, gives no washability or scrub-resistance ratings, and says nothing about burnishing — so none of those may be attributed to it.
Right to Know Hazardous Substance Fact Sheet: Sodium Hypochlorite
New Jersey Department of Health · Government or regulator · Public domain
The substance behind household bleach, which the catalogue had carried for eight sprints on trade and hazard-alert sources without a substance-level regulator sheet.
Written for occupational handling of the substance. Its metals sentence is about equipment and piping rather than about wiping a surface, and the catalogue records it at that scope.
Right to Know Hazardous Substance Fact Sheet: Hydrogen Peroxide
New Jersey Department of Health · Government or regulator · Public domain
Hydrogen peroxide is an established agent in the catalogue and appears in two claims; this puts it on a regulator sheet.
The explosion and instability language describes concentrated and pure hydrogen peroxide, not the dilute solution sold for domestic use. CleaningHQ records the incompatibility and the oxidiser classification and does not transfer the concentrated-material hazards to a household bottle.
Right to Know Hazardous Substance Fact Sheet: Isopropyl Alcohol
New Jersey Department of Health · Government or regulator · Public domain
Isopropyl alcohol is used in the catalogue as a solvent-wiping agent on several surfaces; this establishes its hazard character from a regulator.
Occupational scope. The flammability classification is the part that transfers directly to domestic use, where alcohol is used near hobs, candles and hot appliances.
Owner's Manual: Dryers DDE5207M, DDG5287M
GE Appliances · Manufacturer documentation · All rights reserved
Acquired by the open documents path established in Sprint 8. The tumble dryer had no record and its principal cleaning task turns out to be a fire-safety measure.
One manufacturer, two named models, and an older manual; text extraction carries OCR artefacts and only unambiguous passages were recorded. The lint-filter instruction is common across the industry, but CleaningHQ states it on this source's authority rather than asserting universality.
Materials: Textiles Care and Maintenance
Herman Miller, Inc. · Manufacturer documentation · All rights reserved
Acquired in Sprint 11's bounded upholstery search, by the document-first route. Upholstery had been named as an absent domain in every brief since Sprint 6 and had no record at all.
One manufacturer's guidance for its own named fabric ranges, largely contract and workspace textiles rather than domestic sofas. The vacuum, rotary-brush, steam and over-wetting rules carry across; the fabric-specific solvent recommendations do not, and CleaningHQ does not present them as general upholstery advice.
Outerwear Care Instructions
W. L. Gore & Associates (GORE-TEX brand) · Manufacturer documentation · All rights reserved
Acquired in Sprint 14 to open the outdoor and technical-fabric domain, deferred in seven consecutive sprints. Chosen because membrane outerwear has a complete published care specification rather than scattered advice.
One brand's specification for its own membrane laminates, and it says so — the SHAKEDRY exception inside the same page shows the rules differ between that brand's own products. CleaningHQ does not generalise it to every waterproof garment, and the garment's own label still governs.
Technical Bulletin ISP-1009: Guide to Improved Shrinkage Performance of Cotton Fabrics
Cotton Incorporated · Trade or professional body · All rights reserved
The cotton trade body's technical bulletin. Acquired in Sprint 14 for the shrinkage MECHANISM, which consumer laundry guidance asserts without ever explaining.
A textile-manufacturing document. It explains why washing and tumble drying shrink cotton and quantifies nothing for a household; its test-method and mill-processing content is out of CleaningHQ's scope. The mechanism transfers; the specifications do not.
All About Rayon
Drycleaning & Laundry Institute International (DLI) · Trade or professional body · All rights reserved
The professional garment-care body's fibre page for rayon and viscose. Acquired in Sprint 15; viscose is among the commonest fibres in modern clothing and the catalogue had nothing on it.
A professional drycleaning body has an evident interest in recommending drycleaning, and that is recorded rather than discounted — the failure modes it names are specific and checkable, and the lyocell exception shows it distinguishing rather than blanket-recommending.
Removing stains from wool
The Woolmark Company · Trade or professional body · All rights reserved
A Woolmark page never previously read. The read-versus-built audit had flagged the wool sources as under-extracted; this is the process page behind that.
Wool-specific by its own terms, and it says so. CleaningHQ does not carry its sequencing rule to other fibres, and notes that the page names a biological detergent without addressing the enzyme-on-protein-fibre question.
How to iron wool
The Woolmark Company · Trade or professional body · All rights reserved
Acquired in Sprint 15. Sprint 7 recorded that the wool body gave no ironing instruction on the page then read; this is the page that does.
ACT Coated Fabric Selection Guide for Healthcare Upholstered Seating
Association for Contract Textiles · Trade or professional body · All rights reserved
The contract-textile trade body's own specification guide, read in full as a PDF. Written for specifiers rather than consumers, which is why it states the constraint plainly instead of selling a remedy.
Trade-body specification document. Facts restated and reasoned about in CleaningHQ's own words; no text reproduced. Written for healthcare procurement, so scope is stated carefully wherever it is used.
Kitchen Hygiene: Let's Talk About That Sponge!
Clemson University Cooperative Extension, Home & Garden Information Center · Credible secondary source · All rights reserved
A land-grant university extension factsheet, acquired because external demand repeatedly asked how to clean a kitchen sponge and the register held nothing on it. Recorded as a credible secondary source rather than higher: an extension factsheet is expert consumer advice, not primary research, and it cites no study for its methods.
University extension consumer factsheet. Facts restated in CleaningHQ's own words; no text reproduced. Its stated scope — cleaning rather than disinfecting — is carried wherever it is cited.
Cutting Boards (Plastic vs. Wood), publication az1076
The University of Arizona Cooperative Extension, College of Agriculture and Life Sciences · Credible secondary source · All rights reserved
A land-grant university extension publication, read in full as a PDF on a document path after the federal food-safety page it cites returned 403 to a normal request. Its own references are USDA FSIS fact sheets, so it is a faithful restatement of the federal position rather than an independent one.
University extension publication. Facts restated in CleaningHQ's own words; no text reproduced. Its dilution and dwell figures are carried as ITS figures rather than as general values.
Bulletin #3108, Safe Cutting Boards: Materials, Usage, and Cleaning Tips
University of Maine Cooperative Extension · Credible secondary source · All rights reserved
A second land-grant extension publication, acquired deliberately alongside Arizona's to see whether independent extension services agree on the numbers. They do not, which is the finding.
University extension publication. Facts restated in CleaningHQ's own words; no text reproduced. Its dilution and dwell figures are carried as ITS figures.
Sanitizing Cutting Boards
Washington State University Extension, Consumer Food Safety · Credible secondary source · All rights reserved
A third extension service on the same procedure, read specifically to test whether the bleach dilution is a settled figure. It is not.
University extension page. Facts restated in CleaningHQ's own words; no text reproduced.
How to clean my Philips Airfryer
Philips · Manufacturer documentation · All rights reserved
The manufacturer's own support documentation on its own domain, acquired because the backlog ranking put the air fryer at the head of the queue with the largest sibling count of any uncovered family.
Manufacturer support documentation. Facts restated in CleaningHQ's own words; no text reproduced. Everything here is scoped to Philips Airfryers and is carried as such.
Mattress Care Guide
Tempur Sealy International · Manufacturer documentation · All rights reserved
The world's largest bedding manufacturer's own care guide, read in full as a PDF on a document path. Acquired on the third sprint of trying: mattress demand has ranked near the top of the backlog since Sprint 17 and every previous attempt returned retailer blogs. This is the hospitality edition, written for operators rather than consumers, which is why it states constraints instead of selling a service.
Manufacturer care documentation. Facts restated in CleaningHQ's own words; no text reproduced. Scoped to Tempur Sealy products and carried as such.
The enzyme hunters
Chemistry World, Royal Society of Chemistry · Credible secondary source · All rights reserved
A learned society's magazine feature, taken only after the trade body returned 403 for a third time on a third path and the remaining search space proved to be almost entirely patents. Recorded as a credible secondary source rather than higher: this is science journalism, not a technical specification, and it is used only for the class-level facts it states plainly.
Learned society magazine feature. Facts restated in CleaningHQ's own words; no text reproduced. Used for class-level specificity only.
What's in drain cleaner and what happens if you drink it?
National Capital Poison Center (Poison Control) · Poison or chemical-safety authority · All rights reserved
A poison centre's consumer article on drain cleaner composition and exposure. Acquired in Sprint 21 as the first authoritative record of WHAT IS ACTUALLY IN the products the drain-hack questions are about, because the catalogue held sodium hydroxide as a chemical and nothing connecting it to the bottle under a reader's sink.
US poison centre material. Facts restated in CleaningHQ's own words. The US emergency number it gives is deliberately NOT carried into the catalogue, which serves readers elsewhere; pages point to local emergency services instead.
Temperature limitations for PVC-U DWV pipe, technical note VX-TN-8C
Vinidex Pty Ltd · Manufacturer documentation · All rights reserved
A pipe manufacturer's technical note on the temperature a plastic waste pipe tolerates. Acquired in Sprint 21 to settle the boiling-water question with the only party who actually knows what the pipe is rated to, rather than from plumbing blogs asserting both answers.
A manufacturer speaking about its own PVC-U product to an Australian standard. Authoritative for PVC-U DWV pipe and not generalised to other pipe materials, to other manufacturers, or to the joints, traps and seals in a real waste system, none of which this note addresses.
F.O.G. (Fats, Oils, and Grease) Pollution
Clemson University Cooperative Extension, Home & Garden Information Center, 2019 · Credible secondary source · All rights reserved
A land-grant extension factsheet by a water resources agent. Recorded as a credible secondary source on the same reasoning as the other extension material in this register: expert consumer advice restating a federal position, not primary research.
Extension material restating a federal position. Facts restated in CleaningHQ's own words.
Blocked drains
Severn Trent Water · Credible secondary source · All rights reserved
A UK statutory water and sewerage undertaker's householder guidance on its own sewer network. Recorded as a credible secondary source and never as sole support: an operator writing about its own network is well informed about what blocks it, but this is consumer guidance rather than a technical or regulatory publication.
UK sewerage undertaker consumer guidance. Facts restated in CleaningHQ's own words. The reporting arrangements it describes are specific to one company's region and are not published as general advice.
A Brief Guide to Mold, Moisture, and Your Home
United States Environmental Protection Agency (EPA), Office of Air and Radiation, 2012 · Government or regulator · Public domain
The federal environmental regulator's full consumer mould booklet, read in Sprint 21 as a sixteen-page PDF from the agency's own document path. This is the document the register was missing: it answers the bleach question the short EPA page is silent on, and it does so in a direction almost nobody expects.
US federal government work, public domain. Facts restated in CleaningHQ's own words. Its ten-square-feet threshold and its referral to US professional bodies are US-specific and are carried as the agency's framing rather than as a general rule.
Mold and Moisture in Homes
Minnesota Department of Health · Government or regulator · All rights reserved
A state health department's mould guidance, acquired in Sprint 21 specifically because it is the position that DOES give a bleach dilution — the thing the highest-sensitivity backlog row asks for and the federal guide declines to provide. Read to establish whether the two authorities genuinely disagree or are answering different questions.
US state health department guidance. Facts restated in CleaningHQ's own words. Carried as one authority's operational position, not as a general standard.
Removing Mold in Your Home, publication C 1047-2
University of Georgia Cooperative Extension, 2023 · Credible secondary source · All rights reserved
A land-grant extension publication, authored and dated, acquired in Sprint 21 as a third independent position on the bleach question and read for one thing the other two do not say.
Extension material. Facts restated in CleaningHQ's own words. Its bleach dilution differs from the state health department's and is carried as a second figure with its own attribution rather than reconciled into a range.
Cleaning composition and method for removal of sunscreen stains, US patent US9222058B2
Ecolab USA Inc., granted by the United States Patent and Trademark Office, 2015 · Manufacturer documentation · All rights reserved
A granted, examined patent from a major institutional cleaning-chemistry company, read in Sprint 21 for its background section. Acquired because the avobenzone-and-iron mechanism has circulated on consumer pages since Sprint 17 with no technical source behind it, and Sprint 20's rule is that a specific-sounding claim on a non-authoritative page is a reason for more caution rather than less. This is the first technical document found that states the mechanism.
A patent is a company's own technical account, written to support a claimed invention, and its background is an interested party's framing of the problem. Used for the staining mechanism and the bleach-and-alkali setting effect, both corroborated independently. Its proprietary formulation is not carried into the catalogue and no product is named.
Sunscreen stains, one of the hidden costs in laundries
Christeyns, 2023 · Credible secondary source · All rights reserved
An industrial laundry chemistry company's technical article, dated 25 April 2023, author Liselotte de Ridder. Recorded as a credible secondary source and never as sole support: it is a supplier writing about problems its own products address. Acquired purely as an INDEPENDENT check on whether the patent's mechanism is recognised elsewhere in commercial laundry.
Supplier technical marketing. Used only to corroborate the mechanism and the fabric-type observation, never as sole support, and no product is named in the catalogue.
Microbial Odor Profile of Polyester and Cotton Clothes after a Fitness Session
Applied and Environmental Microbiology, American Society for Microbiology, 2014 · Scientific literature · All rights reserved
A peer-reviewed microbiology paper, acquired in Sprint 21 because the sportswear-odour intent has ranked in the top two for two sprints and the honest constraint on answering it was that CleaningHQ may not make microbiological claims without a source that makes them. This is that source.
Peer-reviewed literature. Findings restated in CleaningHQ's own words; no text reproduced. The measured colony counts are not carried onto consumer pages, where they would imply a precision about anyone's own laundry that the study does not give.
Cleaning the Pump Filter — Front Load Washer
Whirlpool Corporation · Manufacturer documentation · All rights reserved
Manufacturer product-help documentation for a washer pump filter. Acquired in Sprint 21 with a second manufacturer's equivalent, deliberately, so that no one brand's access procedure could be published as though it were universal.
One manufacturer's procedure for its own machines. Never published as a general access method; the catalogue carries the shape of the task and sends readers to their own manual for the specifics.
LG Washer — How to Clean the Drain Pump Filter
LG Electronics · Manufacturer documentation · All rights reserved
A second manufacturer's guidance on the same component, acquired alongside the first specifically to test whether the procedure and the interval are consistent between brands. They are not, and that disagreement is the finding.
One manufacturer's procedure for its own machines. Its monthly interval and its power instruction differ from the other manufacturer in the register and are carried with attribution rather than averaged.
How to Care For Your Cast Iron Cooking Grates
Weber-Stephen Products LLC · Manufacturer documentation · All rights reserved
Grill manufacturer guidance, acquired in Sprint 21 to open the barbecue-grate family from a manufacturer document rather than from the enormous volume of consumer barbecue content, almost none of which distinguishes the grate materials.
A manufacturer writing about its own grills. Authoritative for Weber porcelain-enamelled and cast-iron grates; not generalised to other makes, and explicitly not extended to stainless steel grates, which this document does not cover.
Sunbrella Upholstery Care and Cleaning
Glen Raven, Inc. (Sunbrella), 2023 · Manufacturer documentation · All rights reserved
The manufacturer's own two-page care document for solution-dyed acrylic performance fabric, read in full. Acquired in Sprint 22 because outdoor cushions and patio furniture ranked joint-second in the backlog with 29 sibling intents each and the catalogue modelled no outdoor textile at all.
A manufacturer writing about its own fibre. Authoritative for Sunbrella and for solution-dyed acrylic as this document describes it; NOT generalised to outdoor fabric as a category, and specifically not to surface-dyed or printed outdoor fabric. Named products in the document are not carried into the catalogue.
AAMA 609 & 610-02: Cleaning and Maintenance Guide for Architecturally Finished Aluminum
American Architectural Manufacturers Association (AAMA), 2002 · Standards body · All rights reserved
A voluntary specification from the fenestration industry association, published as a public service and read in full as a PDF. Acquired in Sprint 22 because powder-coated aluminium is the commonest patio furniture frame and the catalogue held bare aluminium but no coated-aluminium finish.
Written for architectural aluminium — window and door frames, curtain walls, panels, handrails — not for furniture. It is authoritative about the FINISH, which is the thing at risk on a patio chair as much as on a mullion, and CleaningHQ says so explicitly wherever it generalises. Cleaning schedules and building-scale procedures in the document are not carried.
Guidance for Keeping Your Dell Technologies Equipment Clean
Dell Technologies · Manufacturer documentation · All rights reserved
A computer manufacturer's own cleaning guidance, acquired in Sprint 22 because the laptop-keyboard row carries 33 sibling intents at high safety sensitivity and the catalogue modelled no electronics at all. Chosen over consumer technique articles because the failure mode here is destroying the device, and only the maker can say what its finishes tolerate.
One manufacturer's guidance for its own equipment. Carried as the shape of the electronics problem — power off, damp not wet, never spray, nothing into openings, air dry before power — and not as a universal permission for any named agent on any other maker's device.
Bosch Compact Toaster TAT6A913IN Instruction Manual
Robert Bosch Hausgeräte GmbH · Manufacturer documentation · All rights reserved
A full appliance instruction manual read as a PDF, acquired in Sprint 22 for the toaster row and its 29 siblings. A manual rather than a support page deliberately: the safety instructions a manufacturer is obliged to print are the part consumer cleaning articles leave out.
One manufacturer's manual for one model. The instructions are carried as that manufacturer's, and the catalogue directs readers to the manual for the appliance they actually own rather than presenting these as universal toaster rules.
Textile friendly non-aerosol antiperspirants with methanesulfonic acid, US patent US9549883B2
Henkel AG & Co. KGaA, granted by the United States Patent and Trademark Office, 2017 · Manufacturer documentation · All rights reserved
A granted, examined patent from a major consumer-chemistry manufacturer, read for its background section. Acquired in Sprint 22 to close a gap Sprint 21 recorded explicitly: the antiperspirant-aluminium account of underarm yellowing was widely repeated and sourced nowhere in this register. Same route that resolved the sunscreen mechanism.
A patent background is an interested party's framing of the problem its invention addresses. Used for the staining mechanism and its time course, which are stated as established rather than as the invention. The claimed formulation is not carried into the catalogue and no product is named.
Waterwise: Cleaning Painting Equipment After Household Use
Clemson University Cooperative Extension, Home & Garden Information Center, 2020 · Credible secondary source · All rights reserved
A land-grant extension factsheet by water-resources authors. Recorded as a credible secondary source on the same basis as the other extension material here. Acquired in Sprint 22 for the paint-brush row and its 33 siblings, and taken from the water-quality angle deliberately, because that is the part of the question consumer guides omit.
Extension material written for one US state; its named local disposal scheme is not carried, and the catalogue states that the disposal route is set locally wherever the reader is.
PVC-U Window & Door Systems: Handling, Installation, Maintenance and Care Guide
The VEKA UK Group (VEKA and Halo profile systems), 2014 · Manufacturer documentation · All rights reserved
A profile manufacturer's full twenty-four-page trade guide, read as a PDF. Acquired in Sprint 23 because uPVC was the standout gap from the Sprint 22 demand batch: it recurs constantly in UK results, the catalogue had no record for it, and consumer advice about it is unusually confident and unusually contradictory.
A profile manufacturer writing for its own installers about its own systems. Authoritative for VEKA and Halo PVC-U and carried as that; the installation, glazing and structural sections are outside CleaningHQ's scope and are not used.
Caring for your collections: Silver and plate
The Institute of Conservation (Icon) · Trade or professional body · All rights reserved
The UK professional body for conservators, on caring for silver. Acquired in Sprint 23 because sterling silver was a named gap and because conservation bodies turn out to be the right authority for a metal whose commonest domestic treatment permanently removes some of it.
Written for people caring for collections rather than for a kitchen drawer, which makes it more conservative than domestic advice. Carried as the conservation position and labelled as such; it is not presented as the only defensible approach to everyday cutlery.
Conservation Information Sheet: Looking after silver
Museum of Applied Arts & Sciences (MAAS), via Museums & Galleries of NSW · Trade or professional body · All rights reserved
A museum conservation department's information sheet, read as a PDF. Acquired as an independent second conservation authority on silver. WORTH RECORDING: an automated summary of this document asserted several instructions it does not contain, and the PDF was read directly for that reason. The record below follows the document.
Museum conservation guidance, more conservative than domestic practice by design. Its storage and display recommendations address collections and are not carried as household advice.
Lens and Screen Cleaning: how to clean your glasses
Carl Zeiss Vision · Manufacturer documentation · All rights reserved
A spectacle lens manufacturer on cleaning its own lenses. Acquired in Sprint 23 because lens coatings were a named gap and because the failure mode here is irreversible: a scratched lens is replaced, not repaired.
A manufacturer recommending its own consumables. Used for the abrasion mechanism, the cloth-contamination finding and the irreversibility of scratches. Named products are not carried into the catalogue.
Household Hazardous Waste (HHW)
United States Environmental Protection Agency (EPA) · Government or regulator · Public domain
The federal environmental regulator on disposing of household hazardous waste. Acquired in Sprint 23 to close a specific defect: Sprint 22 wrote a disposal precaution for paint brushes and validation refused it, because CHQ-V004 requires an authoritative tier and the only sources were an extension factsheet and a water company.
US federal guidance. The general position — these products are hazardous waste, not drain contents, and the route is set locally — is carried; the named US collection arrangements are not, and the catalogue states that the route is local wherever the reader is.
Sterilising baby bottles
National Health Service (NHS), United Kingdom · Government or regulator · Open Government Licence
The UK national health service's own guidance on infant feeding equipment. Acquired in Sprint 24 because sterilising baby bottles was the highest-sensitivity row in the backlog with the most observations behind it, and because it is the one hygiene question in this catalogue where the reader is feeding a newborn.
UK national health guidance. Carried as such, and the 12-month age and the method parameters are the NHS's rather than a general standard. Sterilising equipment is followed by the manufacturer's own instructions, which the guidance itself defers to for steam.
Cleaning the Interior of the Refrigerator
Whirlpool Corporation · Manufacturer documentation · All rights reserved
Manufacturer product-help documentation for refrigerator interiors, from the same publisher as the washing machine pump filter guidance already in this register. Acquired in Sprint 24 because the fridge family carried the largest sibling unlock in the ranking.
One manufacturer's guidance for its own refrigerators. The prohibited list and the glass-shelf instruction are carried as that manufacturer's; readers are directed to the manual for the appliance they own.
How do I clean my Galaxy phone?
Samsung Electronics · Manufacturer documentation · All rights reserved
A phone manufacturer's own cleaning guidance. Acquired in Sprint 24 because the phone rows were the two highest-scoring in the backlog ranking, and because Sprint 22 recorded that the equivalent Apple page could not be retrieved in full.
One manufacturer's guidance for its own phones. The alcohol concentration and the hypochlorous-acid figure are Samsung's for Samsung devices and are not generalised; the scope exclusions are carried with them.
Keratin Protect Intelligent Straightener S8598 — instruction manual
Spectrum Brands (UK) Ltd, trading as Remington · Manufacturer documentation · All rights reserved
The manufacturer's own UK instruction manual, read as a PDF from the manufacturer's document server. Acquired in Sprint 25 because hair straighteners were the highest-scoring uncovered family in the backlog ranking and because consumer advice about them is unusually contradictory.
One manufacturer's manual for one model. The damp-cloth permission is Remington's for a ceramic-coated plate and is not generalised to other stylers; readers are directed to the manual for the appliance they own.
How to Clean Blinds, and How to Clean Wood Blinds
Hunter Douglas · Manufacturer documentation · All rights reserved
The manufacturer's own care documentation, read across its general blind-cleaning page and its wood-specific page. Acquired in Sprint 25 because roller and venetian blinds were two of the highest-scoring uncovered rows and because the product name hides three different materials.
One manufacturer's guidance for its own window coverings. The immersion permission applies to that manufacturer's metal products and to named systems only; it is not carried as a general instruction for metal blinds, and the headrail exclusions travel with it.
Maggots in your wheelie bin — advice on prevention
Fareham Borough Council · Government or regulator · Open Government Licence
A UK waste collection authority's own guidance to residents. Acquired in Sprint 25 specifically to test a question this catalogue had deliberately not answered: whether maggots in a bin are a cleaning problem at all. The held note said the honest evidence is environmental health rather than cleaning chemistry, and named a waste authority as what would settle it.
One waste collection authority's advice to its own residents. Carried as public-authority guidance for domestic bins in the UK; collection intervals and local rules differ between authorities and are not generalised.
Cleaning & Maintenance Guidelines — Gardens & Driveways
Marshalls plc · Manufacturer documentation · All rights reserved
A paving manufacturer's own technical cleaning and maintenance document, read in full as a PDF from the manufacturer's media server. Acquired in Sprint 26 because the garden cluster was the highest-scoring uncovered family in the ranking and because eight accepted rows were waiting on one kind of evidence.
One manufacturer's technical guidance for its own paving. The 30-degree lance angle, the acid-by-stone-type table and the wet-cast exclusions are Marshalls' for Marshalls products; readers are directed to the maker of the paving they own. The document states it is general guidance and not exhaustive.
Bicycle Helmet Liner Materials, and Painting a Bicycle Helmet
Bicycle Helmet Safety Institute · Credible secondary source · All rights reserved
A long-standing non-profit helmet safety institute, read across its liner-materials page and its painting page. Acquired in Sprint 26 because washing a bike helmet was the highest-sensitivity uncovered row in the register and because incorrect cleaning of safety equipment fails silently.
A safety advocacy institute rather than a regulator, a standards body or the helmet manufacturer, so it is tiered as a credible secondary source and CANNOT carry a positive safety clearance in this register. It is used only for the harms it states directly, and the reader is sent to their own helmet's manufacturer for a permitted method.
Care of Ivory, Bone, Horn and Antler — CCI Notes 6/1
Canadian Conservation Institute, Department of Canadian Heritage · Trade or professional body · Licence not established
A national conservation institute's published technical note, read in full. Acquired in Sprint 30 on the Sprint 29 recommendation to reach a conservation body before modelling any ivory record, because the damage in this family is irreversible. Read from the Internet Archive's snapshot of the publisher's page, the live page having refused automated retrieval.
Written for museum collections, not households. CleaningHQ takes the material facts and the prohibitions, which do not soften outside a museum, and does not import the lux and RH targets as domestic instructions — a reader with a piano is not running a climate-controlled case.
When should I get my chimney swept?
HETAS Limited, United Kingdom · Trade or professional body · All rights reserved
The UK solid-fuel approval body's own sweeping-interval guidance, read in Sprint 32. This is the source chimney-sweeping-frequency was blocked on from Sprint 20 to Sprint 31, and the source hetas-appliance-guidance has been asking a future verifier to confirm since Sprint 2.
The UK approval body for solid-fuel appliances. Its intervals are carried as ITS intervals and as UK guidance; they are not generalised to other countries, and the fuel distinction travels with them because it is the whole content of the answer.
How to clean your makeup brushes
American Academy of Dermatology Association · Trade or professional body · All rights reserved
The professional body of board-certified dermatologists, acquired in Sprint 31 for the two halves of the makeup-brush question the register refused to answer from beauty coverage: the hygiene interval, and whether dirty brushes actually cause infection. Deferred in Sprint 30 for exactly this reason.
A dermatology body's consumer guidance. The infection claim is carried as ITS claim, with the organisms it names, and is not restated as a general statement about cosmetics. CleaningHQ does not convert it into medical advice.
Effectiveness of laundering processes used in domestic (home) settings
International Scientific Forum on Home Hygiene, 2013 · Scientific literature · All rights reserved
A review of 29 peer-reviewed studies by Bloomfield, Exner, Signorelli and Scott — London School of Hygiene and Tropical Medicine, Bonn, Parma and Simmons — with a named panel of reviewing experts. Acquired in Sprint 31 because domestic laundry hygiene is the correct scope for the frequency family, and healthcare laundry guidance is not.
SPONSORSHIP IS DISCLOSED IN THE REPORT AND CARRIED HERE: its preparation was supported by AISE, the international soaps and detergents association — an industry body with an interest in detergent formulation, one of the factors the review finds significant. Findings are used as this body's attributed consensus view, never as neutral settled fact.
When to toss your makeup and sunscreen
American Academy of Dermatology Association · Trade or professional body · All rights reserved
The replacement half of the same body's cosmetics guidance, read alongside the brush-cleaning article because the register's frequency family needs replacement intervals as well as cleaning ones.
Cosmetic replacement intervals are outside CleaningHQ's subject and are recorded rather than published as guidance. What the catalogue uses is the tools half — the sponge and brush cleaning intervals — and the contamination mechanism behind them.
Soot, chimney sweeping — Technical Update: Soot (Part 1)
Sweep Safe, United Kingdom · Trade or professional body · All rights reserved
One of the four chimney-sweep trade associations named by HETAS, and the first half of its two-part technical update on soot. Acquired in Sprint 33 on the route the Sprint 32 evidence gap named.
A UK chimney-sweep trade association writing for its own members. Carried as that body's technical position, and the deposit descriptions travel with the fuel conditions that produce them, because the fuel condition is the whole content of the distinction.
Soot classification, soot cleaning — Technical Update: Soot (Part 2)
Sweep Safe, United Kingdom · Trade or professional body · All rights reserved
THE SOURCE THE SOOT FAMILY WAS BLOCKED ON FROM SPRINT 20 TO SPRINT 32. A chimney-sweep trade association's technical classification of chimney deposits, written for sweeps rather than for customers.
Written for practising sweeps, and the removal methods are professional procedures using professional equipment — rotary flails, chemical modification and heat. CleaningHQ carries them as EVIDENCE THAT THE DEPOSIT RESISTS ORDINARY CLEANING, never as a domestic instruction, and the boundary is published with them.
Wood Soot — Dangers to the Chimney sweep and stove installer!
Sweep Safe, United Kingdom · Trade or professional body · All rights reserved
The same trade association's health-and-safety guidance on handling wood soot. Acquired in Sprint 33 because the classification update establishes what the deposit IS and this establishes what handling it does to the person handling it.
Addressed to sweeps and installers doing this work daily, so the professional-scenario equipment is occupational rather than domestic. What CleaningHQ carries is the COMPOSITION and the direction of the hazard — that dry disturbance of wood soot is an inhalation exposure — not an instruction that a householder wiping a stove door needs a PAPR.
Chimney Safety Advice
The National Association of Chimney Sweeps (NACS), United Kingdom · Trade or professional body · All rights reserved
A second of the four HETAS-named trade associations, read in Sprint 33 alongside Sweep Safe so the two could be compared rather than merged. The comparison produced a conflict, which is why reading both mattered.
UK trade association guidance, carried as that body's position and as UK guidance. Its intervals are NOT merged with HETAS's; where they differ the difference is published.
How To Wash Pillows At Home Like an Expert
Bed Advice UK — The National Bed Federation · Trade or professional body · All rights reserved
The consumer arm of the National Bed Federation, the trade association for UK and Irish bed manufacturers. Acquired in Sprint 33 because the can it be washed family was the launch gate's thinnest and the register's only bedding evidence was a memory-foam manufacturer's never-wet rule, which answers the foam question and leaves every other filling unaddressed.
A trade association's consumer guidance, carried as that body's position for UK bedding. The intervals are ITS intervals. The absence of a stated temperature is carried as an absence rather than filled in from elsewhere.
How to Clean Mattress Stains
Bed Advice UK — The National Bed Federation · Trade or professional body · All rights reserved
The same trade association whose pillow guidance was acquired in Sprint 33, on the sibling question. Reached by registered-source completeness rather than by search: the body was already in the register, its bed-care page names a separate stain guide, and nobody had followed the link. Four externally observed mattress rows had sat partial with no stated blocker since Sprint 32.
A trade association's consumer guidance, carried as that body's position for UK bedding. Its disagreement with the manufacturer guidance in this register is published as a conflict; neither is presented as settled.
Cleaning instructions for luminaires
ETAP Lighting International · Manufacturer documentation · All rights reserved
A lighting manufacturer's dedicated cleaning-instruction document, written for whoever maintains the fittings rather than for whoever buys them — which is why it states isolation, cooling and material limits instead of recommending a product. Acquired because three externally observed light-fitting rows were high safety sensitivity, unanswered, and had no attempted route recorded against them.
Manufacturer maintenance documentation. Facts restated in CleaningHQ's own words. Scoped to this maker's luminaires; the isolation and cooling instructions are carried as general because a consumer safety body states them independently, and the material rules are carried as this manufacturer's.
Electrical Safety Advice for Lamps
Electrical Safety First · Trade or professional body · All rights reserved
The UK consumer electrical safety charity, read as the second authority on the isolation question so that a safety-sensitive instruction does not rest on one manufacturer's document. Read for the isolation and cooling statements only; its lamp-selection and positioning material is outside this register's scope.
A consumer safety charity's published advice, carried as that body's position for the UK. Its scope is portable lamps and it is not extended to fixed wiring.
Corrections
If something here is wrong, we want to know. Contradicted sources are kept in the register and marked as contradicted rather than quietly deleted, because a claim that turned out to be unsupported is itself useful information. Contact details are in the footer.