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ASTM E2655-2008 ASTM试验方法中术语测量不确定性的使用和试验结果不确定性的报告用标准指南

ASTM E2655-2008 ASTM试验方法中术语测量不确定性的使用和试验结果不确定性的报告用标准指南

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资料描述

【英文标准名称】: Standard Guide for Reporting Uncertainty of Test Results and Use of the Term Measurement Uncertainty in ASTM Test Methods
【原文标准名称】: ASTM试验方法中术语测量不确定性的使用和试验结果不确定性的报告用标准指南
【标准号】: ASTM E2655-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: E11.20
【标准类型】: (Guide)
【标准水平】: ()
【中文主题词】:
【英文主题词】: measurement error; precision; propagation of errors; random error; systematic error; test results; Type A; Type B; uncertainty
【摘要】: Part A of the x201C;Blue Book,x201D; Form and Style for ASTM Standards, introduces the statement of measurement uncertainty as an optional part of the report given for the result of applying a particular test method to a particular material. Preparation of uncertainty estimates is a requirement for laboratory accreditation under ISO 17025. This guide describes some of the types of data that the laboratory can use as the basis for reporting uncertainty.1.1 This guide provides concepts necessary for understanding the term x201C;uncertaintyx201D; when applied to a quantitative test result. Several measures of uncertainty can be applied to a given measurement result; the interpretation of some of the common forms is described. 1.2 This guide describes methods for expressing test result uncertainty and relates these to standard statistical methodology. Relationships between uncertainty and concepts of precision and bias are described. 1.3 This guide also presents concepts needed for a laboratory to identify and characterize components of method performance. Elements that an ASTM method can include to provide guidance to the user on estimating uncertainty for the method are described. 1.4 The system of units for this guide is not specified. Dimensional quantities in the guide are presented only as illustrations of calculation methods and are not binding on products or test methods treated. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
【中国标准分类号】: A20
【国际标准分类号】: 17_020
【页数】: 6P.;A4
【正文语种】: 英语

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