The PM 2.5 monitoring membrane (PTFE) is a high-purity film specifically designed for PM2.5 ambient air monitoring. It is utilized for particulate matter analysis, exhibits natural hydrophobicity, and adheres to EPA standards.
Instructions
Each film is equipped with a sequentially numbered, chemically resistant polypropylene support ring. The low self-weight allows for precise weight measurement. No glue or adhesive is added during the manufacturing process, and its stable design resists curling, maintaining the flatness of the film and making it suitable for automated use.
Technical specifications
|
Material |
PM2.5 Inspection Membrane filter |
|
Size |
46.2mm |
|
Thickness |
30-40um |
|
Pore size |
2.0um |
|
Support circle material |
PP |
|
Support circle thickness |
0.38mm |
|
Support circle width |
3.68mm |
|
Particle retention(0.3um) |
99.7% |
|
Alkalinity |
<25 μeq/g of filter |
|
Temperature weight loss stability |
<20ug |
|
Drop test weight loss stability |
<20ug |
|
Moisture weight gain stability |
<20ug |
Product Information
|
Item |
Dimension |
Package(/PK) |
|
PM4620 |
PM2.5 sampling inspection membrane,diameter: 46.2mm,pore size:2.0um |
50pcs |
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