Standards

UOP543 - 97


UOP543 - 97 Trace Non-Aromatic Hydrocarbons in High-Purity Aromatics by Gas Chromatography


Active Standard UOP543 Developed by Subcommittee: .

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UOP543

1. Scope

This method is primarily for determining total non-aromatic hydrocarbons below the one mass-% level in individual or mixed aromatic hydrocarbon samples. For the purpose of this method, total non-aromatics is defined as the composite of those components eluting before benzene. The applicability is limited to samples containing compounds having a maximum of 11 carbon atoms. The method may also be used to determine mass-ppm concentrations of benzene in specific sample types containing predominantly C7 and higher boiling aromatics, or benzene and toluene in specific sample types containing predominantly C8



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