Research Report Approved: Feb 07, 1996
RR:D11-1078

D5902-Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value

This report describes an interlaboratory study to establish precision statements for ASTM D5902. A test program was completed to measure the residual unsaturation in HNBR by iodine number and infrared spectrophotometry. This report deals with the iodine number approach only. Seven laboratories tested three different HNBR samples with unsaturation levels of <1%, approximately 2% and approximately 5% were used. The iodine results were measured in duplicate on two difference days.
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Developed by Subcommittee: D11.11
Stock # : RR-D11-1078
Standard: D5902