Benzidine, 3,3′-Dicholorobenzidine, 2,4-Toluenediamine, 2,6-Toluenediamine

Samples are collected closed-face by drawing known volumes of air through sampling devices consisting of three-piece cassettes, each containing two sulfuric acid-treated glass fiber filters separated by a spacer. Analysis is performed by quantitating the heptafluorobutyric acid anhydride derivatives of the amines by gas chromatography using an electron capture detector.

Analysis Type (Application Method): GC-MS SIM

Link to OSHA 65 Method

Compatible Filters:

37 mm glass filter fiber type A/E in a 3 piece polystyrene cassette without support. Forceps to handle filter membrane.


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