ASTM D4402/D4402M-13

1.1This test method outlines a procedure for measuring the apparent viscosity of asphalt from 38 to 260°C [100 to 500°F] using a rotational viscometer and a temperature-controlled thermal chamber for maintaining the test temperature.

1.2The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3This 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. See 10.6 for specific precautionary information.