Why we write “subcontracted” on a certificate

No lab holds every method inside its own accredited scope, and a lab that acts as though it does is telling you a small lie you should worry about. When we send a test to another accredited laboratory — heavy metals is the usual one — the certificate says so and names them.

Clients who care about the number understand this immediately. The ones who are surprised by it are usually the ones who have been quietly misled somewhere before.