Область применения

1.1 These tables are for use in calculating the weight and volume of benzene, toluene, mixed xylenes, styrene, orthoxylene, meta-xylene, para-xylene, cumene, ethylbenzene, 300 to 350°F aromatic hydrocarbons, 350° to 400°F aromatic hydrocarbons and cyclohexane. A method is given for calculating the volume at 60°F from an observed volume at °F. Table 1 lists the density in pounds per gallon at 60°F for high purity chemicals.

1.2 A procedure for the calculation of density in pounds per gallon at 60°F of materials of lower purity is provided.

Note 1-The purchaser and the seller should agree on a reasonable policy in regard to rounding of final numbers in all computations. Rounding the final weight or volume to not more than five significant digits is, in most cases, consistent with the experimental reliability of the data. Note 2-An alternative method is Test Method D4052.

1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.