Trace Impurities in High Purity Ethyl Benzene by GC

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-01-2013

Publisher

American Society for Testing and Materials

Specifies method for determining trace impurities in high purity ethyl benzene by gas chromatography (GC). Specific impurities identified include benzene, toluene, p-xylene, m-xylene, o-xylene, cumene, n-propylbenzene, 1,2-diethylbenzene, 1,3-diethylbenzene, and 1,4-diethylbenzene.

This method is for determining trace impurities in high purity ethyl benzene by gas chromatography (GC). Specific impurities identified include benzene, toluene, p-xylene, m-xylene, o-xylene, cumene, n-propylbenzene, 1,2-diethylbenzene, 1,3-diethylbenzene, and 1,4-diethylbenzene. Non-aromatics and unidentified C₉+ aromatics are determined as composites. Benzene and toluene may not be separated from the non-aromatic impurities by this method but, if required, may be determined individually by UOP Method 543, “Trace Non-Aromatic Hydrocarbons in High-Purity Aromatics by Gas Chromatography.” The lower limit of detection for any single component is 2 mg/kg (massppm) except for p-xylene, which has a lower detection limit of 10 mg/kg.

DocumentType	Standard
Pages	8
PublisherName	American Society for Testing and Materials
Status	Current

ASTM UOP 543 : 2011	Trace Non-Aromatic Hydrocarbons in High-Purity Aromatics by GC
ASTM D 4307 : 2017 : REDLINE	Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards
ASTM U 09 : 2013	Precision Statements in UOP Methods