Quartz Microfibre Filters . . . 2000-166 |
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| These high-purity quartz (Si02) microfiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particulate sampling and ambient air sampling. The filters contain low-level alkaline earth metals. Artifact products of sulfates and nitrates from SO2 and NO2 are virtually eliminated. | |||||
Whatman QM-A Quartz Fiber Filters | ||||||
circles | diam mm | cat.# | sheets | size | cat.# | |
25/box | 8x10-in | 24292 | ||||
100/box | 3.2 | 24287 | pre-numbered sheets | size | cat.# | |
100/box | 8x10-in | 24293 | ||||
