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Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments And changes 8/16/2017).
Automatically translated name:
Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
STANDARD published on 10.1.2002
Designation standards: ASTM E177-90a(2002)
Note: WITHDRAWN
Publication date standards: 10.1.2002
SKU: NS-42974
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
Accuracy, ASTM voluntary consensus standards, Measurement processes, Precision-construction materials test methods, Statistical methods, use of terms precision/bias in ASTM test methods, practice, ICS Number Code 19.020 (Test conditions and procedures in general)
1. Scope | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1.1 The purpose of this practice is to present concepts necessary to the understanding of the terms "precision" and "bias" as used in quantitative test methods. This practice also describes methods of expressing precision and bias and, in a final section, gives examples of how statements on precision and bias may be written for ASTM test methods. The term "accuracy", used in earlier editions of Practice E 177, embraces both precision and bias (see Section 20 and Note 4). 1.2 Informal descriptions of the concepts are introduced in the text as the concepts are developed, and appear in the following sections: <
1.3 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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