PCM Cassette Analysis (NIOSH 7400)
Our laboratory provides expert Phase Contrast Microscopy (PCM) analysis of air samples collected on cassettes, following the NIOSH 7400 method. This technique is used to determine airborne fiber concentrations—primarily for asbestos monitoring in occupational environments.
NIOSH 7400 offers a reliable, cost-effective screening tool for regulatory compliance and worker safety. All samples are analyzed by experienced technicians in accordance with stringent quality assurance protocols, in compliance with WorkSafeBC Standards.
DG Environmental & Testing Ltd. are a PTC Asbestos Proficiency Testing participant and are Proficient in NIOSH 7400 Fiber Counting.
Lab ID: 4590
*Please contact for pricing.
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To submit samples please ensure the following:
Make sure all cassettes are labelled with an ID.
Download the Chain of Custody (CoC), linked above.
Fill out the CoC, making sure to fill in any box not labeled “Lab Use'“.
Place all cassettes into a bag along with the CoC.
Drop off the sample at our lab located in the about us section.
Pricing varies depending on turn around time and quantity, please contact us for more information.
If you have any questions regarding the process please contact us and we will be happy to help.
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Our Lab Technicians will analyze the PCM cassettes using the NIOSH 7400 method, the results will show the fibers counted, fiber concentration, along with acceptable standards for worker safety.