ASTM International Standard Test Method for Hydrocarbon Traces in Propylene Concentrates By Gas Chromatography ASTM D2712-91(2003)e1

1.1 This test method covers the determination of 5 to 500 ppm each of ethylene, total butylenes, acetylene, methyl acetylene, propadiene, and butadiene in propylene concentrates. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parenthese are for information only. 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.