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ASTM D5902-96

Historical Revision

Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value

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1.1 This test method covers the Wiijs procedure for the determination of unsaturation (iodine value) in hydrogenated nitrile rubbers.

1.2 This test method is applicable only to those hydrogenated nitrile rubbers derived from copolymers of acrylonitrile and butadiene.

1.3 Iodine values are reported in centigrams of iodine per gram of HNBR [cg(I2)/g]. Higher iodine values indicate higher levels of unsaturation.

1.4 This test method is appropriate for calculating the percent residual unsaturation of hydrogenated nitrile rubber if the iodine value of the base polymer before hydrogenation has been determined.

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.


SDO ASTM: ASTM International
Document Number D5902
Publication Date Feb. 10, 1996
Language en - English
Page Count 3
Revision Level 96
Supercedes
Committee D11.11
Publish Date Document Id Type View
Dec. 1, 2005 D5902-05E01 Revision
Dec. 1, 2005 D5902-05 Revision
Feb. 10, 1996 D5902-96 Revision
Sept. 1, 2023 D5902-05R23 Reaffirmation
Dec. 1, 2019 D5902-05R19 Reaffirmation
June 1, 2015 D5902-05R15 Reaffirmation
June 1, 2010 D5902-05R10 Reaffirmation
Feb. 10, 1996 D5902-96R01 Reaffirmation