Knowledge

Metrology Dictionary

The complete VIM vocabulary — all numbered concepts of JCGM 200:2012 as faithful paraphrases with clause citations — plus clearly labeled practice terms from the GUM, ILAC, ISO and NIST guidance.

Process measurement assurance

A program of intermediate checks using check standards and control charts to demonstrate that a measurement process remains in statistical control between calibrations, as described in NIST SOP 30.

NIST SOP 30 (2019) · Quality & Accreditation

Proficiency testing

Evaluation of participant performance against pre-established criteria by means of interlaboratory comparisons — an ISO/IEC 17025 requirement for demonstrating ongoing competence.

ISO/IEC 17043:2023 · Quality & Accreditation