Determination of Trace Methanol in Industrial Ethylene and Propylene——Gas Chromatography (1)

This standard refers to the international standard ISO8174-86 "Industrial ethylene and internal ene- Determination of acetone , acetonitrile , isopropanol and methanol -Gas chromatography"

1 Subject content and scope of application

This standard specifies the use of gas chromatography to determine trace amounts of methanol in industrial ethylene and propylene

This standard applies to samples with methanol content greater than 1 mg/kg

2 Reference standards

GB 7715 Industrial Ethylene

GB 7716 Industrial Propylene

1 Method summary

The gaseous sample or the absorption liquid obtained by water absorption and enrichment is injected into the gas chromatograph, and detected by a hydrogen flame ionization detector, and quantified by an external standard method

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