ASTM-UOP931:2010 Edition

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UOP931-10 Trace Impurities in Mixed Xylenes by GC

Published By	Publication Date	Number of Pages
ASTM	2010	12

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Description

ASTM UOP931-10

Active Standard: Trace Impurities in Mixed Xylenes by GC

ASTM UOP931

Scope

This method is for determining trace impurities in high-purity mixed xylenes by gas chromatography (GC). Specific trace impurities determined include non-aromatic hydrocarbons, benzene, toluene and individual C9 and C10 aromatic compounds. C10 or higher non-aromatics, if present, may interfere with the determination of benzene, but it can be determined by UOP Method 543. The lower limit of quantitation for any single component is 1 mg/kg (mass-ppm). Impurities at concentrations above 500 mg/kg should be determined by UOP Method 744.

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