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This method is for determining trace hydrocarbon impurities in high purity p-xylene. The method is quantitative for a single impurity down to a level of 0.005 mass-%. The method can also be used for determining the total purity of the p-xylene. Mixed xylene isomers and/or diethylbenzenes in other process streams should be determined using UOP Method 744.
ASTM UOP720-93, Impurities in High Purity p-Xylene by GC, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top