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ASTM D5775-95(2009)e1

Current Revision

Standard Test Method for Rubber—Determination of Bound Styrene in Styrene Butadiene Rubber by Refractive Index

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1.1 This test method covers the determination of styrene content, and is intended for general use on solid uncompounded styrene-butadiene copolymers, commonly referred to as SBR, prepared by the emulsion process. SBR polymers prepared in solution will require the use of different refractive index tables because the vinyl content of the butadiene differs from that in the emulsion polymers. It is applicable to polymers having less than 55 % bound styrene.

Note 1The nomenclature used in this test method is in accordance with Practice D1418.

1.2 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.


4.1 The bound styrene test is a measure of the bound monomeric composition of the rubber. It is used as a check on the accuracy of monomer charging and also as a guide to the uniformity of the product, since the bound styrene content affects the physical properties.

SDO ASTM: ASTM International
Document Number D5775
Publication Date May 1, 2009
Language en - English
Page Count 4
Revision Level 95(2009)e1
Supercedes
Committee D11.11
Publish Date Document Id Type View
May 1, 2009 D5775-95R09E01 Revision
Sept. 1, 2023 D5775-95R23 Reaffirmation
Jan. 1, 2019 D5775-95R19 Reaffirmation
Aug. 1, 2014 D5775-95R14 Reaffirmation
May 1, 2009 D5775-95R09 Reaffirmation
Dec. 1, 2004 D5775-95R04E01 Reaffirmation
Jan. 1, 2000 D5775-95R00 Reaffirmation