ASTM D71 Standard Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)
11. Report
11.1 Report the average of the two determinations to the third decimal place, unless the individual values differ by more than 0.005. In this case, repeat the determinations with two newly selected fragments or cast specimens. Discard the lowest of the four values and report the average of the others to the third decimal place as relative density 25°C/25°C.
12. Precision
12.1 The following criteria shall be used for the acceptability of results (95 % probability):
12.1.1 Repeatability - Duplicate values by the same operator shall not be considered suspect unless they differ by more than 0.005.
12.1.2 Reproducibility - The values reported by each of two laboratories, representing the arithmetic average of duplicate determinations, shall not be considered suspect unless the reported values differ by more than 0.007.
13. Keywords
13.1 asphalt; density; pitch; specific gravity; water displacement
