ASTM D4311-04e1

1.1 This practice provides tables of volume correction factors which may be used to convert volumes of asphalt measured at different temperatures to a volume at a standard base temperature. These tables are applicable to all types of asphalts except emulsified asphalts.

1.2 This practice provides tables to convert asphalt volumes to 15C or 60F from volumes measured at any temperature from 25 to +275C or 0 to 500F.

1.3 The conversions from the two tables are not equivalent because the temperatures of 15C and 60F that they are based on are not equal.

Correction factors in and are for use in place of correction factors provided in Guide D 1250, which do not address requirements for asphalt specifications.

Asphalts change in volume with change in temperature. They are loaded or transferred at widely varying temperatures. Volume correction factors are used to adjust bulk volumes measured at those temperatures to corresponding volumes at a base temperature of 15°C or 60°F for the purposes of custody transfer and accounting operations.

Correction factors as provided in this practice have proven to be sufficiently accurate for the intended purposes.

Coefficients of expansion used for development of data in this practice are as follows: