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ASTM International - ASTM C670-15

Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

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Organization: ASTM International
Publication Date: 15 June 2015
Status: active
Page Count: 9
ICS Code (Construction materials in general): 91.100.01
scope:

1.1 The Form and Style for ASTM Standards requires that all test methods contain statements on precision and bias. Further, the precision statement is required to contain a statement on single-operator precision (repeatability) and a statement on multilaboratory precision (reproducibility). This practice provides guidance for preparing precision and bias statements that comply with these requirements. Discussion of the purpose and significance of precision and bias statements for users of test methods is also provided. Examples of precision statements that conform to this practice are included in Appendix X1. This practice supplements Practice E177 and has been developed to meet the needs of ASTM Committees dealing with construction materials.

Note 1: Although this practice is under the jurisdiction of Committee C09, the current version was developed jointly by Committees C01 and C09 and has subsequently been adopted for use by other committees dealing with construction materials.

1.2 This practice assumes that an interlaboratory study (ILS) has been completed in accordance with Practice C802 or Practice E691. The interlaboratory study provides the necessary statistical values to write the precision and bias statements.

1.3 The system of units for this practice is not specified. Dimensional quantities in the practice are presented only in examples of precision and bias statements.

1.4 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.

abstract:

This practice provides guidance in preparing precision and bias statements for ASTM test methods pertaining to construction materials. Test method shall conform to the maximum acceptable range of... View More

Document History

ASTM C670-15
June 15, 2015
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
1.1 The Form and Style for ASTM Standards requires that all test methods contain statements on precision and bias. Further, the precision statement is required to contain a statement on...
July 1, 2013
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
1.1 The Form and Style for ASTM Standards requires that all test methods contain statements on precision and bias. Further, the precision statement is required to contain a statement on...
October 1, 2010
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
This practice provides guidance in preparing precision and bias statements for ASTM test methods pertaining to construction materials. Test method shall conform to the maximum acceptable range of...
January 10, 2003
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
This practice provides guidance in preparing precision and bias statements for ASTM test methods pertaining to construction materials. Test method shall conform to the maximum acceptable range of...
January 1, 1996
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
1.1 This practice supplements Practice E177, in order to provide guidance in preparing precision and bias statements for ASTM test methods pertaining to certain construction materials (Note 1)....
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