ANSI/ASTM D5225-1998 差分粘度计测量共聚物溶剂粘度的方法(08.03)

标准号：ANSI/ASTM D5225-1998
中文标准名称：差分粘度计测量共聚物溶剂粘度的方法(08.03)
英文标准名称：Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer (08.03)
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1998/10/13 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.01
适用范围： This test method covers the determination of the solution viscosity of polymers using a differential or the modified differential viscometer. It is applicable to all polymers that dissolve completely without chemical reaction or degradation to form solutions that are stable with time and temperature. Results of the test are usually expressed as specific viscosity, intrinsic viscosity (limiting viscosity number), inherent viscosity (logarithmic viscosity number), or relative viscosity (viscosity ratio). Since there is more than one type of viscometer available to measure a differential pressure, follow the manufacturers directions applicable to the equipment being used. The solution viscosity values are comparable with those obtained using a glass capillary of Test Method D 2857. This test method differs from the glass capillary in that the solvent and the solution are compared at the same time that a test is run. With a glass capillary, each solution must be referenced back to the solvent run in the same capillary at the same temperature. 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. For specific hazard statements, see Section 8. There is no ISO equivalent method.