MCE
Metals and fibre sampling
Choose the membrane, diameter and pore size specified by the laboratory for metals analysis or fibre counting. NIOSH 7300 and 7400 describe different analytical procedures.
View Filter Codes →ZEFON · SAMPLING SOLUTIONS
ZEFON Dust Sampling Filters
Select cassettes, membranes and sampling media by substance, aerosol fraction and laboratory method.
Plan the Whole Sampling Chain
The filter collects airborne material for subsequent weighing or laboratory analysis. Choose the material, diameter and nominal pore size together with the sampler and analytical method.
Find Product and NOVEL Codes →Select the Collection Medium
PVC
Gravimetric dust sampling
Used in applications comparing pre- and post-sampling weights. Pair with the sampler or cyclone for the target fraction; silica assessment additionally requires appropriate laboratory analysis.
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PTFE
Chemical compatibility and specialist analysis
Consider where chemical resistance matters. Verify supported or unsupported construction, pressure drop and analytical compatibility against the selected method.
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PCTE
Microscopic examination
Flat polycarbonate membranes support microscopic examination under an appropriate procedure. Membrane choice alone does not determine the respirable fraction.
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Glass Fibre
Glass Fibre Filters
Consider for suitable methods requiring high dust loading or high flow. Confirm binder content, blank values and analytical compatibility with the laboratory.
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Silver
Silver Membrane Filters
Some specialist analytical methods require metallic silver membranes. Select material, diameter and pore size for the actual analytical procedure.
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Supports
Filter Supports
Help support the membrane within its cassette. Select cellulose, plastic or metal supports for chemical compatibility and cassette design.
View Product Codes →Nominal pore size is not the aerodynamic particle-size cut point. The inlet or cyclone, its specified flow and the method determine the sampled aerosol fraction.
METHOD SELECTION
Connect the Product to the Measurement Objective
HSE MDHS14/4
Inhalable, thoracic and respirable aerosol fractions; sampler selection and gravimetric assessment.
Read the Method ↗NIOSH 0500
Filter collection and gravimetric analysis of total particulate.
Read the Method ↗NIOSH 0600
Cyclone and filter collection of respirable particulate; flow depends on the selected cyclone.
Read the Method ↗NIOSH 7400
Fibre counting with suitable MCE media, cassette and microscopic assessment.
Read the Method ↗NIOSH 7300
Elemental analysis; agree sample preparation and analytical compatibility with the laboratory.
Read the Method ↗From Field Sample to Laboratory Result
- Define the substance, target fraction and analytical method.
- Match the sampler, filter and pump; calibrate the assembled sampling train.
- Record time and flow, identify field blanks and seal the sample for transport.
- Evaluate laboratory results using sampled volume, blank correction and the selected method.