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Significance and Use
4.1 Butadiene dimer and styrene may be present as impurities in commercial butadiene. This test method is suitable for use in internal quality control and in establishing product specifications.
1.1 This test method covers the determination of butadiene dimer (4-vinylcyclohexene-1) and styrene in butadiene concentrates, both recycle and specification grade.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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. For specific precautionary statements see Sections and .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1657 Test Method for Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer
D1945 Test Method for Analysis of Natural Gas by Gas Chromatography
D2593 Test Method for Butadiene Purity and Hydrocarbon Impurities by Gas Chromatography
ICS Number Code 71.080.10 (Aliphatic hydrocarbons)