Specific instruments are used to identify pollutants. They include dust, gas fumes, vapor, and dust in addition to fibers. This video shows equipment utilized to collect the airborne pollutants.
The following media are used for air sampling
1. Filter cassettes
2. Impaction cassettes
3. Impinger assemblies
4. Sorbent tubes
5. For air monitors, badges
Filter cassettes
Filters in them trap specific harmful substances. Filters include
A) Mixed cellulose ester for asbestos and lead sample
PVC homopolymer, pure homopolymer. Silica, samples of wood and dust.
C) Glass fiber samples oil mist
D) Silver membrane – samples of black coal, carbon coke oven, tar
It is) Teflon – samples acid gasses, mists and liquids
Zefon’s preloaded 37mm 2-piece cassette is packed with
Blue inlet plug
Cassette inlet
Filtering for Collection
Filter support pad
Cassette outlet
Plug for outlet in red
Zefon’s 3 piece cassette, which is 37mm long, is equipped with the same features of the 2-piece cassette however, it has a retainer ring.
Zefon’s preloaded 25mm 3 piece asbestos cassette looks similar to the two-piece cassette, and it has a two-inch extender cowl. This recommendation is made by OSHA and NIOSH in asbestos testing.
Zefon also offers matched filters that are pre-weighed and weighed for analysis of gravimetrics. irvn2sb538.