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Preweighed Coal Dust Sampling Cassettes
Zefon’s Preweighed Coal Dust Sampling Cassettes consist of a sealed outer plastic capsule and an inner pre-weighed filter capsule. The inner capsule contains a 5 micron PVC filter, and stainless steel supports.
Each filter cassette is supplied with a mine data card, which has the weight of the filter capsule recorded to the nearest 0.001mg, and a mailing carton addressed to the Mine Safety and Health Administration (MSHA). Specified for use in coal mine dust sampling per 30 CFR part 74.