ASTM E177 - 26
Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
| Aviso: | Las normas ASTM en lectura se visualizan a través del área de cliente. Los archivos no se pueden descargar |
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| Fecha edición: |
2026-02-01
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | 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. A statement of precision allows potential users of a test method to assess in general terms the test method’s usefulness with respect to variability in proposed applications. |
| Keywords: | accepted reference value; accuracy; bias; interlaboratory study; precision; precision conditions; repeatability; reproducibility; standard deviation; |
| 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. 1.2 The system of units for this standard is not specified. Dimensional quantities in the standard are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 19.020 - Condiciones y procedimientos de ensayo en general |
| CTN: | E11.20 - E11.20 |
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Otras Relaciones |
Es referenciada por F2516 - 22 Es referenciada por D6792 - 25 Es referenciada por D4214 - 23 Es referenciada por C1891 - 25 Es referenciada por D3241 - 26 Es referenciada por D1331 - 20(2024) Es referenciada por C430 - 25 Es referenciada por C579 - 23 Es referenciada por C1012/C1012M - 24a Es referenciada por D5349 - 19 Es referenciada por D7466/D7466M - 23 Es referenciada por C187 - 25 Es referenciada por D7843 - 25e1 Es referenciada por D7430/D7430M - 22 Es referenciada por F3260 - 25 Es referenciada por D3321 - 19(2023) Es referenciada por C1468 - 19a Es referenciada por D6175 - 24 Es referenciada por D7476 - 08(2024) Es referenciada por D4222 - 26 |
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