Requirements for measurement traceability


CLAS Requirements Document 9 May 2018

1.0 Scope

  • 1.1 This document provides detailed requirements for the traceability of measurements performed by CLAS-certified calibration laboratories.
  • 1.2 This document conforms to the requirements of ISO/IEC 17025, General Requirements for the Competence of Testing and Calibration Laboratories, and to the International Laboratory Accreditation Cooperation (ILAC) traceability policy ILAC P-10.

2.0 Requirements

  • CLAS-certified calibration laboratories must obtain the calibration of their reference standards used to establish traceability to the International System of Units (SI) for all certified capabilities from any of the following sources: