ASTM UOP1035-19
Determination of Trace Chloromethane, Chloroethene, and Dichloromethane in Polymer Grade Ethylene and Propylene by Gas Chromatography Mass Spectrometry

Standard No.

ASTM UOP1035-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM UOP1035-19

Scope

This method is for determining trace chloromethane, chloroethene, and dichloromethane in high purity polymer grade ethylene and propylene gas or liquid using a gas chromatograph equipped with a mass spectrometer run in selected ion monitoring mode. The specific instrument is preconfigured and is capable of determining typical impurities in polymer grade ethylene or propylene, however this method only outlines the procedure for determining chloromethane, chloroethene, and dichloromethane. Chloromethane and chloroethene elute on the propylene tail but are readily extracted by unique ions. The lower limit of quantitation for chloromethane, chloroethene, and dichloromethane are 0.02 mol- (or mass-) ppm.

ASTM UOP1035-19 history

• 2019 ASTM UOP1035-19 Determination of Trace Chloromethane, Chloroethene, and Dichloromethane in Polymer Grade Ethylene and Propylene by Gas Chromatography Mass Spectrometry