BS EN ISO 14253-5:2015 specifies concepts and terms for evaluating the uncertainties of the test values derived according to a test protocol agreed upon by the parties and relative to instrument indication(s), obtained in verification testing of GPS indicating measuring instruments.

NOTE The uncertainty of the test values, referred to as test value uncertainty, is not to be confused with the measurement uncertainty associated with using that indicating measuring instrument to measure workpieces. The former only is covered in this part of ISO 14253; for guidance on the latter see the ISO/IEC Guide 98-3 (GUM) and ISO 14253-2.

When a test of an indicating measuring instrument comprises several test values, some relative to the instrument indication and some to other metrological characteristics, this part of ISO 14253 is concerned with the uncertainty of the former only.

This part of ISO 14253 does not provide guidelines to ensure the adequacy of a test protocol; rather, once a test protocol is given, it describes how to evaluate the consequent test value uncertainty.


Cross References:
ISO 10360-1:2000
ISO 14253-1:2013
ISO/TR 14253-6:2012
ISO 14978:2006
ISO 17450-2:2012
ISO/IEC Guide 98-3:2008
ISO/IEC Guide 99:2007
ISO 3650:1998
ISO 8015
ISO 10360-2:2009
ISO 14253-2:2011
ISO 14638:2015


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