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Updatetime : 2019-01-16  |  (0 Reviews)
PM 2.5 membrane filters are made from PTFE material, which are chemically resistant and possess low chemical background interference, allowing the user to carry out sensitive determinations

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  • Conforms to EPA PM 2.5 reference method

  • Manufactured under clean room

  • No glues or adhesives

  • Sequentially numbered for easy traceability

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Filter MediaN/AN/APTFE TeflonN/A
Filter DiameterMicrometermm46.2±0.2
Filter ThicknessMicrometerμm40±10
Filter Pore SizeASTM F 316-94μm2maximum
Support Ring MediaN/AN/APolypropylenePMP or Equivalent
Total support ring thicknessMicrometermm0.38±0.04
Particle retentionASTM D 2986-95a%99.7minimum
Pressure Drop(0.3μm)ASTM D 2986-95acm H2O30maximum
AlkalinityEPA/600-R-94/038b, section 2.12μeq/g of filter25maximum
Weight lossas aboveμg<20maximum
loose particlesas aboveμg<20maximum
Moisture pickupas aboveμg<10maximum

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PM25470.38mm46.2mm15

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