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.
Coal Dust Sample Cassettes, MSHA Mandated, Each Product #: 803462-1PK
Coal Dust Sample Cassettes, MSHA Mandated, 2/pk Product #: 803462-2PK