Certified BestChek Asbestos Cassettes
The Highest Standard for Cassette Reliability
Preloaded Filter Cassettes for Asbestos

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 fibers 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.

• Count
  Average background fiber count is less than 4 fibers 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 minimized error.



• Construction
  Certified leak-free, cassette parts are manufactured with close tolerances and vacuum and pressure tested for leakage.

Diameter (mm)	Filter and Cassette Specifications		Qty.	Cat. No.
25	MCE, 1.2-µm filter, preloaded in a 3-piece black conductive polypropylene (goblet style with extension cowl) cassette, banded with 2-inch spacer, with support pad		50	225-507
25	MCE, 1.2 µm, gridded filter, preloaded in a 3-piece black conductive polypropylene (goblet style with extension cowl) cassette, banded with 2-inch spacer, with support pad		50	225-1934
25	MCE, 0.8 µm, gridded filter, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style for PCM analysis BestChek Quality tested for low asbestos fiber 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 fiber 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 for PCM analysis BestChek Quality tested for low asbestos fiber background Non-certified		50	225-321X *
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 fiber background Certificate of analysis included		50	225-321A *
25	MCE, 0.45 µm, filter with support and 5.0-µm diffuser pads, carbon-filled conductive polypropylene, black, assembled with cowl, banded, tapered-end style for TEM analysis BestChek Quality tested for low asbestos fiber 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 fiber background Certificate of analysis included		ea	225-322 **
37	MCE, 0.45 µm, styrene cassette (non-conductive) with microvacuum nozzle		ea	225-9543
37	Polycarbonate, 0.4 µm, styrene cassette (non-conductive) with microvacuum nozzle		ea	225-9542
Microvacuum Cassette Template Reusable plastic 10 x 10 cm for sampling asbestos			ea	225-2403 **
Microvacuum Cassette Template Disposable paper 10 x 10 cm for sampling asbestos			250	225-2415

BestChek Certified Asbestos Cassettes Product Data Bulletin (PDF)

*   Meets specifications for asbestos sampling by OSHA ID 160, NIOSH 7400 and 7402
** Meets specifications for asbestos sampling by ASTM D 5755 and ASTM D 5756
#  Meets EPA AHERA specifications

Asbestos Sampling Pumps and Sampling Accessories

Ordering Information           Online Ordering

Asbestos Sampling Pumps		Cat. No.
Gast Rotary Vane Pump with locking flow control valve and tubing		228-505
AirLite Sample Pump includes three AA alkaline batteries and screwdriver set. Not UL listed for intrinsic safety		110-100
5-Pack Pump Kit High Flow includes 5 AirLite sample pumps as described above and cassette holders, in a Pelican case		110-100K5
5-Pack Pump Kit High and Low Flow includes 5 AirLite sample pumps as described above, cassette holders, CPCs, single adjustable low flow holders, and Type A covers, in a Pelican case		110-100K5D
Asbestos Sampling Accessories
Cassette-Tripod Stand, telescopes to 5 feet and holds a 25 or 37-mm cassette Stand is not intended to hold a pump. Pump, tubing, and cassette not included		228-502
Replacement Tripod Fitting, end fitting for tubing in 228-502 tripod stand		P50821
Tubing, Collar Clip, and Cable Tie includes 36-inch (0.9 meter) Tygon tubing (1/4-inch ID) and one alligator clip attached to a nylon cable tie		225-13-8
Collar Clip and Cable Ties only		225-13-6
PVC Tubing Adapters, Luer taper connects to 1/4-inch ID tubing, pk/10		225-13-2