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Significance and Use
5.1 Methanol is a common impurity in propylene concentrate. It can have a deleterious effect on various processes that use propylene concentrate as a feedstock.
1.1 This test method covers the determination of methanol in propylene concentrates in the range of approximately 4 mg/kg to 40 mg/kg (parts-per-million by mass).
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
Note 1: There is no direct acceptable SI equivalent for screw threads.
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. Specific warning statements are given in , , and .
ICS Number Code 71.080.10 (Aliphatic hydrocarbons)
UNSPSC Code 15111503(Propylene)
ASTM D4864-14, Standard Test Method for Determination of Traces of Methanol in Propylene Concentrates by Gas Chromatography, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top