ASTM-D5225 2003

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D5225-98(2003) Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer

Published By	Publication Date	Number of Pages
ASTM	2003	4

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Categories: 83.080.01 - Plastics in general, ASTM

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Description

ASTM D5225-98-Reapproved2003

Historical Standard: Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer

ASTM D5225

Scope

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 manufacturers 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 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.

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. For specific hazard statements, see Section 8.

Note 1

There is no ISO equivalent method.

Keywords

differential solution viscosity; differential viscometer; polymer solution viscosity

ICS Code

ICS Number Code 83.080.01 (Plastics in general)

DOI: 10.1520/D5225-98R03

Additional information

Standard Title	D5225-98(2003) Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
Published Code	ASTM
Publication Date	2003
Pages Count	4
ICS Codes	83.080.01 - Plastics in general