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articles:nist_traceability [2019/11/20 07:38] – [An "unbroken chain of calibrations" to what?] rrandall | articles:nist_traceability [2019/11/20 07:46] – [An "unbroken chain of calibrations" to what?] rrandall | ||
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Sec. 820.72 Inspection, measuring, and test equipment. \\ | Sec. 820.72 Inspection, measuring, and test equipment. \\ | ||
(b) (1) Calibration standards. Calibration standards used for inspection, measuring, and test equipment shall be __traceable to national or international standards__. If national or international standards are not practical or available, the manufacturer shall use an independent reproducible standard. If no applicable standard exists, the manufacturer shall establish and maintain an in-house standard.</ | (b) (1) Calibration standards. Calibration standards used for inspection, measuring, and test equipment shall be __traceable to national or international standards__. If national or international standards are not practical or available, the manufacturer shall use an independent reproducible standard. If no applicable standard exists, the manufacturer shall establish and maintain an in-house standard.</ | ||
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+ | And [[https:// | ||
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+ | <WRAP center round box 80%> | ||
+ | Appendix 2 - Definitions \\ | ||
+ | h. Calibration Standard - a device or instrument used as a basis to calibrate measure, gage, test, inspect, or otherwise examine basic accuracy values. The standard has a higher order of accuracy than the examined item and is traceable to the National Institute of Standards and Technology (NIST).</ | ||
In contrast, ISO 17025:2017 is much more modern and technically correct in stating:\\ | In contrast, ISO 17025:2017 is much more modern and technically correct in stating:\\ |