1.1 This practice presents a method of determining rational specification limits by inclusion of the precision of the test method used in the specification.
Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials (Includes all amendments and changes 2/21/2025).
FHWA Report HI-93–047
Materials Control and Acceptance--Quality Assurance, Federal Highway Administration, May 1993 Available from National Technical Information Service (NTIS), U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.