What an Accredited Laboratory Is Accredited For

Check it yourself, in three moves

An accreditation claim is one of the few things on a peptide report you can verify without contacting anybody. Find the accreditation body and the certificate number printed somewhere on the document, then look the named laboratory up in that body’s public register, which every such body maintains. Then open the scope attached to that entry and see whether the particular method that produced your result appears on it. The whole exercise takes a couple of minutes, and it is worth doing because of how the standard is structured.

Nobody is accredited in general

A laboratory that is simply accredited does not exist. What gets awarded is a scope: specified methods, run against specified matrices, over stated ranges. Approval for HPLC purity determination on synthetic peptides means approval for that and for nothing adjacent to it. The same building may well also do mass spectrometry, elemental analysis or endotoxin work with none of it inside the scope, and sharing letterhead with accredited work does not make unaccredited work accredited.

Which produces the everyday way these claims get stretched. Imagine a document bearing an accreditation body’s mark in the corner, with a mass spectrometry result printed beneath it, from a laboratory whose scope runs to chromatographic purity alone. Nothing on the page is false. The mark is real. The figure the reader came for was nonetheless generated outside the accredited scope. Scope is the substance; the logo is decoration. And because scopes are published rather than private, the difference is anyone’s to check.

What an assessor actually looked at

ISO/IEC 17025 is the international standard concerned with the competence of testing and calibration laboratories, conferred by a national accreditation body after assessment. The assessment covers two territories at once: technical ability to perform particular methods, and the management system wrapped around that ability.

In practical terms, a laboratory holding the standard has shown it can run its scoped methods reliably. Its instruments are calibrated against traceable references. Its staff are trained, with that competence on record. Its methods are validated. Its results come with a stated measurement uncertainty. And it participates in proficiency testing, which puts its answers next to those of comparable laboratories.

Claims the mark does not support

When the trail goes cold

Suppose the report names no laboratory, or names one whose accreditation you cannot trace in any register. Read that as a different claim rather than as evidence of wrongdoing. Plenty of competent peptide analysis happens outside accredited scopes every day. It is simply not the claim the word accredited is being used to suggest, and it deserves to be weighed on those terms. The rest of what a report contains is worked through in what a third-party peptide test actually measures.

All of the above concerns laboratory research material and the published literature. Nothing supplied is a drug or a supplement, and none of it is intended for administration to people or to animals.