ISO/IEC 17025:2017 Accredited Calibration Services

ISO/IEC 17025:2017 specifies the general requirements for the competence, impartiality, and consistent operation of testing and calibration laboratories. It is the international benchmark a laboratory must meet to prove that its measurements — and the people, methods, equipment, and quality system behind them — can be trusted.

The distinction that matters: certification means a company says it follows a standard; accreditation means an independent accreditation body has assessed the laboratory’s actual technical competence — witnessed the methods, audited the traceability chains, reviewed the uncertainty budgets — and formally attests to it. ACS is assessed by Perry Johnson Laboratory Accreditation on a continuous cycle, so our accreditation is never a one-time trophy; it’s a standing obligation.

For your quality system, that means calibration certificates your auditors accept without argument — whether the audit is ISO 9001, IATF 16949, AS9100, FDA, CLIA, or a customer’s own quality team reading line by line.

• Accredited certificates on request — with reported measurement uncertainty, for every instrument on our scope
• Verified traceability — our reference standards and their NIST-traceable pedigrees are audited, not asserted
• Continuous assessment — PJLA re-examines our competence on an ongoing cycle, so the accreditation you rely on today was checked recently
• One vendor, full coverage — instruments outside our scope receive NIST-traceable calibration with identical data rigor, or QA-reviewed accredited subcontract through our approved vendors