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ASTM D2396-20

Current Revision

Standard Test Methods for Powder-Mix Time of Poly(Vinyl Chloride) (PVC) Resins Using a Torque Rheometer

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1.1 These test methods cover the determination of the powder-mix time of a general-purpose poly(vinyl chloride) (PVC) resin.

1.2 The values stated in SI units are to be regarded as standard.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Note 1: ISO 4574-2019 is covering the primary subject of this ASTM method.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 The ability of PVC granules to accept a plasticizer and become a dry free-flowing powder is related to the internal pore structure of the resin, resin temperature, plasticizer temperature, and the plasticizer used. By choosing an applicable plasticizer and maintaining a uniform temperature for the resin and plasticizer, it is possible to classify resins by how rapidly they absorb plasticizer. Resin suitability for a specific intensive mixing operation can be ascertained using these test methods.

SDO ASTM: ASTM International
Document Number D2396
Publication Date Dec. 1, 2020
Language en - English
Page Count 7
Revision Level 20
Supercedes
Committee D20.15
Publish Date Document Id Type View
Dec. 1, 2020 D2396-20 Revision
July 10, 1999 D2396-94R99E01 Revision
April 1, 2012 D2396-94R12 Reaffirmation
March 1, 2004 D2396-94R04 Reaffirmation