Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography

Importancia y uso:

4.1 High-purity ethylene is required as a feedstock for some manufacturing processes and the presence of trace amounts of certain hydrocarbon impurities can have deleterious effects. This test method is suitable for setting specifications, for use as an internal quality control tool, and for use in development or research work.

4.2 This test method does not detect such impurities as H₂O, CO, CO₂, and alcohols that may be present in the sample. Hydrocarbons higher than n-decane cannot be analyzed by this test method, if present in the sample. Test Method D2504 addresses the analysis of noncondensable gases and Test Method D2505 addresses the analysis of CO₂. Guide D5234 describes all potential impurities present in ethylene. These standards should be consulted when determining the total concentration of impurities in ethylene.

Subcomité:

D02.D0.02

Volúmen:

05.02

Número ICS:

71.040.50 (Physicochemical methods of analysis)

Palabras clave:

ethylene; gas chromatography; hydrocarbon impurities;