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| Product Name | YunDa YD-TQD-A Paper permeability Tester (7 inch screen) | BoLaiDe BLD-TQ20 Paper Air Permeability |
| Product Price | $4216.00 | $1137.00 |
| Details | Details | |
| Model comparison | ||
| Measurement method | Shopper method Graleifa Bentson | |
| Parameter comparison | ||
| Measurement Range | 0~2500mL/min、0.01~42μm/(Pa•s) | 0-1000ml/min |
| test area | 10cm² | 10cm² |
| accuracy | 0.01μm/Pa•s，0.06ml/min, 0.1s(Gurely) | |
| Linearity | ≤ 1% test | |
| differential pressure | 0.05kPa~6kPa | |
| power supply | AC 220V±22V, 50Hz | |
| weight | About 30kg | About 23kg |
| show | Touch screen Chinese and English display | |
| Meet the standard | GB/T458、ISO5636/2、QB/T1667、GB/T22819、GB/T23227、ISO2965、YC/T172、GB/T12655 | |
| test method | Schauber, Bentson, Gurley | |
