Accredited Standards Committee (ASC) Z540

NCSLI has been serving as the administrative sponsor and secretariat for the Accredited Standards Committee (ASC) Z540 since its accreditation as an ANSI Accredited Standards Committee on February 28th, 1994. The standards are developed and maintained using the Procedures for an Accredited Standards Committee. The NCSLI is an organization with goals to promote cooperative action on common problem of management and operations of measurement standards and calibration laboratories. Information exchange is accomplished through a variety of meetings, publications, committee activities and discussions. Identification of current practices, problems, and policies, as well as cooperative efforts and research needs all advance the goals of NCSLI.

The ASC Scope: To develop and maintain standards for the operation and design of calibration laboratories, requirements for the control and use of measuring and test equipment, and requirements or guides for metrological functions associated with calibration laboratories and/or measuring and test equipment. These standards may be new development projects or may be based upon current ISO/IEC standards or guides, other international standards, recommended practices developed by the NCSLI or other industry good practices.

What is a standard? A VCS? An ANS?
  • Standard*: a document that tells you how to do or say or make or test or organize or design something
  • Voluntary Consensus Standard (VCS)*: a private sector standard developed in a specifically defined open and fair environment with general agreement by stakeholders
  • American National Standard (ANS): a VCS developed in accordance with the “ANSI Essential Requirements Due process requirements for American National Standards” and subject to ANSI’s unique:
    • accreditation of consensus procedures
    • neutral oversight
    • approval process
    • appeals process
    • procedural audit
* Simplified definition
The American National Standards Institute (ANSI) coordinates, facilitates, and promotes the development of voluntary consensus standards that are relied upon by industry, government agencies, and consumers across the United States and around the world. ANSI fosters the U.S. standardization system by accrediting the procedures of standard-setting organizations and subsequently approving individual documents as American National Standards (ANS). Nearly 220 ANSI-Accredited Standards Developers are now engaged in the creation and maintenance of voluntary consensus standards that are being used in virtually every industry sector. These standards developers — and the experts that populate them — work cooperatively to enhance the U.S. quality of life and improve the competitiveness of businesses operating in the global marketplace.