Gravimetric analysis samples require filters to be weighed both before and after sampling to determine the amount of contaminate collected. Zefon® pre-weighed cassettes eliminate the inconvenience of pre-weighing filters by providing the filter weight on each cassette prior to sampling.
Features
• Each cassette is labeled with weight and serial number
• Use of pure homopolymer PVC filters provides excellent weight stability
• PVC filters specially designed with no silica and low ash properties
*Limited shelf life
| Part Number | Diameter | Pore Size | Housing Style | Weight Tolerance | Quantity |
| ZE-5P52P | 25 mm | 5.0 μm | 2-Piece Styrene | 15 μg | 50/Box |
| ZE-5P52P-GS | 25 mm | 5.0 μm Gravi-Sert™ | 2-Piece Styrene | 15 μg | 50/Box |
| ZE-5P53P | 25 mm | 5.0 μm | 3-Piece Styrene | 15 μg | 50/Box |
| ZE-7P52P | 37 mm | 5.0 μm | 2-Piece Styrene | 15 μg | 50/Box |
| ZE-7P53P | 37 mm | 5.0 μm | 3-Piece Styrene | 15 μg | 50/Box |
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