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Abstract:
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This discussion presents the technical issues concerning the homogeneity and stability of artifacts that are used primarily for proficiency testing of calibration laboratories. It also makes consensus recommendations concerning the resolution of these issues. These recommendations are intended for use as guidance for the application of a proficiency testing scheme that meets the requirements of ISO/IEC Guide 43-1:1997 and ILAC G13:2007, and ISO 17043 (in development).
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