1.1本试验方法概述了使用旋转粘度计和温度控制热室（用于保持试验温度）测量38至260C（100至500F）沥青表观粘度的程序。 1.2以国际单位制表示的数值应视为标准。以厘米-克-秒（cgs）单位和英寸-磅单位给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 具体预防信息见10.6。

1.1 This test method outlines a procedure for measuring the apparent viscosity of asphalt from 38 to 260C (100 to 500F) using a rotational viscometer and a temperature-controlled thermal chamber for maintaining the test temperature. 1.2 The values stated in SI units are to be regarded as the standard. The values given in centimetre gram second (cgs) units and inch-pound units are for information only. 1.3 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. See 10.6 for specific precautionary information.