Standard Practice for Calculating Precision Limits Where Values Are Calculated from Other Test Methods

Importancia y uso:

4.1 Precision statements for calculated values can be developed using this approach. Users can also evaluate how an individual test method’s precision influences the variability of calculated values.

4.2 The standard deviation of a calculated value that is the sum, difference, product, or quotient of two or more test method results, each with their own precision statement, can be calculated so long as the individual variables (that is, test results) are independent and the standard deviations are small relative to their mean values. These restrictions are usually met in ASTM methods. In those cases where these restrictions are not met, other methods can be used. Only cases complying with the restrictions are covered in this standard.

Subcomité:

D04.94

Referida por:

D0596-01R18, D3203-22, D0596-01R18

Volúmen:

04.03

Número ICS:

93.080.20 (Road construction materials)

Palabras clave:

precision limits; standard deviation;