Research Report RR:D11-1078

    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.

    Published: February 1996

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    Related Standards

    D5902-05(2019) Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value

    Committee D11 on Rubber and Rubber-like Materials

    Subcommittee D11.11 on Chemical Analysis