OSHA 57

4,4′-Methylenedianiline (MDA)

Samples are collected by drawing known volumes of air through sulfuric acid-treated glass fiber filters. Before submitting the samples to the laboratory, each filter is transferred to separate glass vials containing 2 mL of deionized water. Analysis is performed by analyzing the heptafluorobutyric acid anhydride derivative of MDA by gas chromatography using an electron capture detector.

Analysis Type (Application Method): GC-MS

Link to OSHA 57 Method

Compatible Filters:

37 mm, sulfuric acid treated glass fiber. Forceps to handle filter membrane.

Materials

     
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