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Description of ASTM-D5225 2003ASTM D5225-98-Reapproved2003Historical Standard: Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential ViscometerASTM D5225Scope 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 1There 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 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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