Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography and Sulfur Selective Detection

Importancia y uso:

5.1 Accurate gas chromatographic determination of trace levels of thiophene in benzene involves special analytical problems because of the difficulties of trace level analysis. These problems arise from the low concentration levels that need to be measured, the type of column and detector needed for analysis, and the potential interference from the benzene matrix.

5.2 This test method was found applicable for determining thiophene in refined benzene conforming to the specifications described in Specifications D2359, D4734, and D5871 and may be applicable toward other grades of benzene if the user has taken the necessary precautions as described in the text.

5.3 This test method was developed as an alternative technique to Test Method D4735.

Subcomité:

D16.04

Referida por:

D7124-24, D2359-24, D4734-24, D7185-24, D5871-24

Volúmen:

06.04

Número ICS:

75.160.20 (Liquid fuels)

Palabras clave:

atomic emission detector; benzene; chemiluminescence detector; gas chromatography; pulsed flame photometric detector; sulfur; thiophene;