Product Description
25mm Asbestos Air Sampling Cassette with Dual MCE Filters – TEM Applications
Zefon 25mm air sampling cassettes are engineered for regulated asbestos fiber monitoring using transmission electron microscopy (TEM) methods and compatible PCM workflows. Manufactured in-house under strict quality systems, each cassette is injection-molded, individually assembled, serialized, and tested to deliver defensible clearance and exposure results for environmental consultants, industrial hygienists, and accredited laboratories.
This configuration combines 0.45µm and 5.0µm mixed cellulose ester (MCE) filters in a three-piece static-conductive cassette, packaged 50 per box, preloaded and ready for field deployment.
Cassette & Filter Specifications
• 25mm three-piece cassette
• 0.45µm + 5.0µm MCE dual-filter stack (TEM)
• Static-conductive housing with 2" extension cowl
• Serialized for chain-of-custody traceability
• Preloaded – ready for sampling
• Pack quantity: 50 per box
Regulatory Compliance
• Meets NIOSH 7400 & 7402
• Meets OSHA ID-160
• Meets AHERA requirements (TEM Model Z045BA)
• Designed for asbestos TEM analysis
Independent Quality Verification
Each cassette undergoes 100% inspection to verify correct filter/pad placement and confirm that no parchment paper remains inside.
Every production lot is independently tested using blank samples to ensure acceptable background fiber counts under NIOSH protocols.
Daily random-lot audits add another layer of assurance for consultants and laboratories. Documentation is available upon request.
Why Dual-MCE TEM Cassettes Matter
• Required for AHERA clearance testing
• Supports defensible post-abatement reports
• Reduces costly resampling
• Trusted by environmental laboratories
• Ideal for school and commercial asbestos surveys
Need a Different TEM or PCM Configuration?
Alternate pore sizes, grid options, and cassette combinations are available.
Contact our technical team for compatibility and lead-time guidance.
