Gravimetric analysis samples require filters to be weighed both before and after sampling to determine the amount of contaminate collected. Zefon® match-weighed cassettes eliminate the need of weighing filters before sampling by providing two filters which are matched in weight. The top filter collects particulate and the bottom filter serves as a control. After sampling, both filters are weighed and the difference in weight equals the amount of contaminate collected.
Features
• Each cassette labeled with serial number
• Color coded to indicate filter type
• Preloaded - ready to use
*Limited shelf life
| Part Number | Filter | Diameter | Pore Size | Housing Style | Band Color | Weight Tolerance | Quantity |
| ZE-5M92M | MCE | 25 mm | 0.8 μm | 2-Piece Styrene | Blue | 25 mm | 50/Box |
| ZE-5M93M | MCE | 25 mm | 0.8 μm | 3-Piece Styrene | Blue | 25 mm | 50/Box |
| ZE-7M92M | MCE | 37 mm | 0.8 μm | 2-Piece Styrene | Blue | 37 mm | 50/Box |
| ZE-7M92M-R-SB | MCE | 37 mm | 0.8 μm | 2-Piece Styrene | Blue | 37 mm | 50/Box |
| ZE-7M92M-TN | MCE | 37 mm | 0.8 μm | 2-Piece Tenite, Meets Requirement Of ASTM D2276 | Blue With Security Band | 37 mm | 50/Box |
| ZE-7M93M | MCE | 37 mm | 0.8 μm | 3-Piece Styrene | None | 37 mm | 50/Box |
| ZE-5M52P | PVC | 25 mm | 5.0 μm | 2-Piece Styrene | Red | 25 mm | 50/Box |
| ZE-5M53P | PVC | 25 mm | 5.0 μm | 3-Piece Styrene | Red | 25 mm | 50/Box |
| ZE-7M52P | PVC | 37 mm | 5.0 μm | 2-Piece Styrene | Red | 37 mm | 50/Box |
| ZE-7M53P | PVC | 37 mm | 5.0 μm | 3-Piece Styrene | Red | 37 mm | 50/Box |
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