How to trace a product claim to its evidence
A claim trace links one precise statement to the document supporting it. Record who said it, what object it concerns and under which conditions. Repeated wording on several shop pages does not automatically provide several independent tests.
KEY TAKEAWAYS
- Preserve the exact scope of the claim.
- Distinguish the manufacturer’s statement from independent evidence.
- Evidence about a component does not automatically cover a complete device. [1]
Write the claim card
Use a complete proposed record: statement; issuer; exact product or component; source URL; source passage; source date and its stated kind; access date; conditions; permitted conclusion; verdict; reason. Mark an unstated source date unknown and keep it separate from the access date. Fill the verdict and reason after checking the evidence. An unsupported extension then remains visible instead of disappearing into a fluent paragraph.
Follow the object
EPA defines HEPA as a category of particle filter. Its definition identifies the component and the filtering criterion; a manicure device’s dust capture requires evidence about the assembled device and its test arrangement. [1]
Check attribution and independence
A manufacturer page can establish what the manufacturer says. CND’s lamp page, for example, scopes its compatibility statement to its own light-curable systems. A retailer repeating that statement has not thereby performed another compatibility test. [2]
Record the verdict and the missing evidence
Use supported within scope when the examined evidence supports the recorded conclusion for the named object and conditions; manufacturer statement only when the material establishes what the manufacturer claims without independent confirmation; unresolved when missing, inaccessible or mismatched evidence prevents a conclusion. A manufacturer claim alone therefore stays manufacturer statement only, even when its attribution is clear. Put the basis in the reason field: wrong model, component instead of device, or missing method, conditions or report. Keep the source passage separate from your summary. Shops repeating a text still refer to the same claim; a separate test needs its own object, method and result.
Article Sources
- US Environmental Protection Agency (EPA) — What is a HEPA filter?
Primary source
Definition of HEPA as a pleated mechanical particulate filter, in EPA’s residential-air context. This defines the filter, not complete-device certification or workplace capture performance. Publication date unstated.
Webpage updated:
- CND — CND Visible Light Lamp
Manufacturer material
Product description: the compatibility statement covers CND’s own light-curable systems. A manufacturer statement for the named system, not independent validation or a cross-brand compatibility statement.
Written and reviewed with AI assistance using the linked sources. No hands-on product testing or independent specialist review was performed.
Commercial resource from our ecosystem
Professional nail materials and tools with NailMarket.eu — a shop in our ecosystem.
NailWiki, BELOM, NailMarket, BELOM App and NaNails are projects of BELOM Group OÜ, as identified by the owner. Molokom catalogue images are supplied through our NaNails shop; this commercial relationship is not independent product-test evidence.
