Match a PCB Laboratory Test to Its Accreditation Scope

A laboratory’s accreditation should be evaluated against the test you are buying. The organization’s name and logo alone do not establish coverage for every method, location, or reported conclusion. Match the proposed work to the published scope before samples are committed.

Identify the actual testing activity

State the specimen, property, method and revision, measurement range, conditioning, and any requested departures. A general request for PCB reliability testing is too broad to compare with a scope entry. Distinguish the environmental exposure from the electrical or physical measurements performed before and after it.

ILAC’s accreditation FAQ directs users toward accreditation bodies and their accredited organizations. Start with the issuing body’s directory and the laboratory’s actual scope, checking the site that will perform the work. Save the relevant document version with the procurement review.

Compare the proposed report with the scope

Ask the laboratory to resolve an ambiguous method description rather than inferring coverage. A modified method or unusual specimen may still be useful engineering work, but its status and limitations must be explicit. The calibration-scope review addresses the related question of whether measurement equipment is supported over its actual use.

Keep qualification and interpretation separate

For example, a laboratory may be accredited for a thermal exposure method while a custom functional check is supplied by the customer. That can be a workable plan, provided the report identifies the two activities correctly. Do not present the complete product conclusion as automatically covered by the exposure method’s accreditation.

Review any externally provided test results independently. A subcontracted measurement may use another organization’s scope and report identity. Confirm the intended arrangement before shipping scarce specimens.

Retain the scope comparison, laboratory clarification, and final reporting requirements with the purchase specification. Repeat the check when the method, site, or work package changes. This creates evidence for the particular test decision instead of relying on a supplier qualification performed for unrelated work.