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Standard Guide for Reporting Uncertainty of Test Results and Use of the Term Measurement Uncertainty in ASTM Test Methods
Automatische name übersetzung:
Standard-Leitfaden für die Berichterstattung über die Unsicherheit von Prüfergebnissen und Verwendung des Begriffs Messunsicherheit in ASTM-Testverfahren
NORM herausgegeben am 1.10.2008
Bezeichnung normen: ASTM E2655-08
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2008
SKU: NS-45817
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
measurement error, precision, propagation of errors, random error, systematic error, test results, Type A, Type B, uncertainty, ICS Number Code 17.020 (Metrology and measurement in general)
Significance and Use | ||||||||||||||||||
Part A of the “Blue Book,” 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. |
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1. Scope | ||||||||||||||||||
1.1 This guide provides concepts necessary for understanding the term “uncertainty” 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. |
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2. Referenced Documents | ||||||||||||||||||
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