Work Item
ASTM WK84658

Revision of C670-15 Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials


Changes to 3. Terminology are meant to improve clarity. is changed to clarify that "replicate" may be used in cases where multiple determination are made to obtain a test result. The change to removes superfluous wording. In, the word "group" is replaced with "number" and a hyphen was added to "one-sigma" for consistency in the standard. A sentence is added to to emphasize why multilaboratory variation is greater than single-operator variation as well as the removal of extra wording and a comma. In "results" is changes to "test results" to agree with the usage in the following sentence.


Developed by Subcommittee: C09.94

Committee: C09

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 01-03-2023

Technical Contact: Heath Hall

Item: 000