Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number

Importancia y uso:

5.1 Determining the type and amount of hydrocarbon impurities remaining from the manufacture of toluene, mixed xylenes, p-xylene, o-xylene, ethylbenzene, benzene, and styrene used as chemical intermediates and solvents is often required. This test method is suitable for setting specifications and for use as an internal quality control tool where these products are produced or are used. Typical impurities are: alkanes containing 1 to 10 carbons atoms, benzene, toluene, ethylbenzene (EB), xylenes, and aromatic hydrocarbons containing nine carbon atoms or more.

5.2 This method may not detect all components and there may be unknown components that would be assigned inappropriate correction factors and thus, the results may not be absolute.

Subcomité:

D16.01

Referida por:

D7124-19, D5136-19, D7185-19, D0841-19, D2827-19, D6367-21, D4734-20, D0843-19, D5606-19, D5211-19, D5471-23, D5871-19, D0841-19, D3193-24, D5871-19, D2700-24B, D7951-20, D2700-24B, D4734-20, D2699-24A, D2699-24A, D2359-19, D2359-19, D2699-24A, D2700-24B

Volúmen:

06.04

Número ICS:

71.080.15 (Aromatic hydrocarbons)

Palabras clave:

aromatics; benzene; ECN; ethylbenzene; gas chromatography; impurities; mixed xylenes; purity; o-xylene; p-xylene; styrene; toluene;