ASTM D5670-95(2004)e1
Historical Standard: ASTM D5670-95(2004)e1 Standard Test Method for Rubber-Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Infrared Spectrophotometry
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ASTM D5670
1. Scope
1.1 This test method, based on infrared examination of rubber films cast from solution, covers the percentage of residual unsaturation (double bonds in unhydrogenated butadiene) in hydrogenated nitrile rubber.
1.2 This test method is applicable to all grades of hydrogenated nitrile rubber in the raw state.
1.3 This test method assumes that specimens and infrared spectra are prepared and analyzed by experienced personnel and that the equipment is operated according to the manufacturer's direction for optimum performance. No details for operation of infrared spectrophotometers are included in this test method.
1.4 Since it is customary in infrared spectrophotometry to use wavenumbers (cm -1 ) rather than Hertz (Hz), the unit for frequency in the SI system, the former is employed throughout this test method.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
E932 Practice for Describing and Measuring Performance of Dispersive Infrared Spectrometers
E1421 Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
Keywords
HNBR; hydrogenated nitrile rubber; infrared spectrometry (IR); unsaturation; Chemical analysis--rubber chemicals/materials; HNBR (hydrogenated nitrile rubber); Infrared spectrophotometry; Nitrile rubber; Residual unsaturation; Rubber; Unsaturation;
ICS Code
ICS Number Code 83.060 (Rubber)
DOI: 10.1520/D5670-95R04E01
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