A PRAGMATIC METHOD FOR PASS/FAIL CONFORMANCE REPORTING THAT COMPLIES WITH ANSI/NCSL Z540.3, ISO/IEC 17025, AND ILAC-G8

Michael C Dobbert, Robert M Stern, Rui Villela Ferreira

Abstract

A practical criteria for stating Pass/Fail conformance when calibrating an instrument and comparing the measured results against manufacturer specifications, considering regional and regulatory requirements. A flexible calibration result reporting includes Pass/Fail conformance statements, which is especially true when serving a global market. This paper explores the different requirements or guidelines in standards documents, such as ANSI/NCSL Z540.3-2006, ISO/IEC 17025:2005, ILAC-G8:1996, and EURAMET/cg-15/v.01 and presents a non-obvious, yet simple method for expressing statements of Pass/Fail conformance. It employs flexible acceptance limits resulting in straightforward “Pass” and “Fail” conformance labels, with unobtrusive annotation to communicate additional information required by the standards documents. The result is a concise, uniform method flexible enough to satisfy all of the aforementioned standards, regardless of the chosen acceptance limits.

Keywords

Statement of conformance, Acceptance and Tolerance limits, False Accept/Reject risks

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IMEKO-TC4-2011-054.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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