ASTM D5225-14
Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- Standard No.
- ASTM D5225-14
- Release Date
- 2014
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D5225-17
- Latest
- ASTM D5225-22
- Scope
5.1 Solution viscosity values for polymers are related to the average molecular size of that portion of the polymer which dissolves in the solvent.
1.1 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).
1.2 Since there is more than one type of viscometer available to measure a differential pressure, follow the manufacturer’s directions applicable to the equipment being used.
1.3 The solution viscosity values are comparable with those obtained using a glass capillary of Test Method D2857. 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.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
Note 1—There is no known ISO equivalent to this standard.
ASTM D5225-14 Referenced Document
- ASTM D1243 Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
- ASTM D2857 Standard Practice for Dilute Solution Viscosity of Polymers
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D5225-14 history
- 2022 ASTM D5225-22 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- 2017 ASTM D5225-17 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- 2014 ASTM D5225-14 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- 2009 ASTM D5225-09 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- 1998 ASTM D5225-98(2003) Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
- 1998 ASTM D5225-98 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
