Updated September 26, 2017
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- The ANSI/NCSL Z540.3 has replaced both the ANSI/NCSL Z540.1 and the MIL-STD-45662. You may also want to take a look at ISO-10012, the International Calibration Standard. To find similar documents by Federal Supply Class Code: FSC Standardization Area QCIC (Quality Control/Assurance and Inspection).
- Currently in the U.S. There are two national standards for calibration laboratories such as, the ANSI/NCSL Z540-1 (Z540-1) and ISO/IEC 17025. Having two different national standards can be confusing for both laboratories and customers; therefore, we have put together a brief guide to describe the basic differences between the two standards.
The ANSI/NCSL Z540.3 has replaced both the ANSI/NCSL Z540.1 and the MIL-STD-45662. You may also want to take a look at ISO-10012, the International Calibration Standard. To find similar documents by Federal Supply Class Code: FSC Standardization Area QCIC (Quality Control/Assurance and Inspection).
Updated September 26, 2017
In the United States, there are two sets of accreditation standards for calibration laboratories. ANSI Z540 is shorthand for one of them. Calibration laboratories test measurement and testing equipment and control instruments for diagnostic and standards compliance purposes.
ANSI/NCSL Z540
From 1994 to 2000, U.S. national standards for calibration laboratory accreditation were set out in the American National Standards Institute standard, ANSI/NCSL Z540-1-1994, “Calibration Laboratories and Measuring and Testing Equipment – General Requirements.' These standards have been updated twice since 2000. The current standard is ANSI/NCSL Z540-3-2006. In common usage, this standard is often shortened to ANSI Z540 or NCSL Z540. ANSI developed ANSI Z540 in collaboration with NCSL, the National Conference of Standards Laboratories.
ISO/IEC 17025
In 2000, ANSI adopted ISO/IEC 17025, a set of international laboratory calibration accreditation standards. These were developed by the International Standardization Organization and the International Electrotechnical Commission. ISO/IEC 17025 was revised in 2005 to address stricter quality management requirements.
Two Standards
U.S. calibration laboratories can be accredited as ANSI/NCSL Z540 compliant, ISO/IEC 17025 compliant or both. The choice largely depends on the requirements of laboratory clients.
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How long are my calibration records retained and are they secure? Accredited calibrations provide a certificate of calibration with the accrediting body's logo z5400 the document. Test report numbers should not be used nor required as proof of the adequacy or traceability of a test or measurement.
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Ansi Ncsl Z540.3 Pdf 2017
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Ansi Ncsl Z540.3 2013
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Ansi Ncsl Z540.3 Pdf File
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