Asbestos has so many attractive properties and has often been used in a variety of forms for construction. If building materials are not properly maintained, asbestos fibres can become airborne creating significant environmental health problems. Proper sampling is key to determining airborne asbestos concentrations. Sampling methods are also available to determine asbestos concentrations in settled dust.
The BestChek cassettes meet or exceed NIOSH, OSHA and ASTM standards in count, clearing, conductivity, collection area and construction:
- Count - Average background fibre count is <4 fibres per 100 fields
- Clearing - Filter material clears thoroughly to meet method specifications and is suitable for PCM analysis
- Conductivity - Cassette plastic contains over 18% carbon black for proper conductivity as tested using ASTM methods
- Collection area - Inside diameter varies by only ±5 mm2 for consistent collection area and minimised error
- Construction - Certified leak-free, cassette parts are manufactured with close tolerances and vacuum and pressure tested for leakage
All preloaded asbestos filters include cellulose supports.
| Diameter (mm) |
Filter and Cassette Specifications |
Pack Size |
Part Number |
| 25 |
MCE, 1.2 µm, black grid, preloaded in a 3 piece black conductive polypropylene (goblet style with extension cowl) cassette, banded with 5 cm spacer, with support pad |
50 |
225-1934 |
| 25 |
MCE, 0.8 µm black grid, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style for PCM analysis
BestChek Quality tested for low asbestos fibre background
Certificate of analysis included |
50 |
225-326* |
| 25 |
MCE, 0.8 µm, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style for PCM analysis
BestChek Quality tested for low asbestos fibre background
Certificate of analysis included |
50 |
225-321* |
| 25 |
MCE, 0.8 µm, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style with stand-up plug in outlet end for PCM analysis
BestChek Quality tested for low asbestos fibre background
Certificate of analysis included |
50 |
225-321A* |
| 25 |
MCE, 0.45 µm, filter with support and 5.0µm diffuser pads, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style for TEM analysis
BestChek Quality tested for low asbestos fibre background
Certificate of analysis included |
50 |
225-327# |
| 25 |
Microvacuum Cassette, MCE, 0.45 µm, carbon-filled conductive polypropylene, black, assembled with cowl and Tygon nozzle for TEM analysis
BestChek Quality tested for low asbestos fibre background
Certificate of analysis included |
Each |
225-322** |
| 37 |
MCE, 0.45 µm, styrene cassette (non-conductive) with microvacuum nozzle |
Each |
225-9543 |
| 37 |
Polycarbonate, 0.4 µm, styrene cassette (non-conductive) with microvacuum nozzle |
Each |
225-9542 |
| Microvacuum Cassette Template, disposable paper 10 x 10 cm for sampling asbestos |
250 |
225-2415 |
* Meets specifications for asbestos sampling by OSHA ID160, NIOSH 7400 and 7402
** Meets specifications for asbestos sampling by ASTM D5755 and ASTM D5756
# Meets EPA AHERA specifications
|
225-321, 225-326, 225-327, 225-1934
|
225-321A
|
225-322
|
225-9542, 225-9543
|
