Certification marks are the shorthand buyers use to avoid reading test reports. They are worth having and worth reading properly, because what a mark covers is narrower than what it is usually taken to mean.
A certificate is about a claim, not about quality in general
Certification bodies test a stated reduction claim on a stated model under a stated protocol. The result is: this unit, with these cartridges, reduced this substance by this much, under these conditions. It is not a statement that the machine is good, that it will do the same on your water, or that anything else in the range was tested.
Four questions that settle it
- Which model, exactly — including the cartridge configuration tested?
- Which claim, and against which standard or protocol?
- Who issued it, and can the certificate be looked up on their register?
- Is it current, and what is its expiry?
Marks that are not performance claims
Several common marks certify materials safety, electrical safety or a management system rather than filtration performance. A factory quality-management certificate says the factory has a documented process, which is worth knowing and is a different question from what the membrane removes. Neither replaces the other.
KomiBright's own certificates and patents belong on the Information page rather than in this article, where a specific number would go stale the day one is renewed. Ask for the document and check it against the issuer's register — that is the check this whole article reduces to.
