| Grade品级 | Basis Weight 基重g/m2 | Thickness 厚度mm | Capillary Rise mm/10 min. | 应用 | STANDARD SIZES |
| BF1 | 90 | 0.16 | 80 | Cover for gel-membrane sandwich | 580 x 600 100 sheets |
| BF2 | 190 | 0.36 | 70 | | Slot and Dot processes ,gel-lifting, buffer-wicking, semi dry blotting ； Cover for gel-membrane sandwich | | 580 x 600 100 sheets 460 x 570 100 sheets |
| BF3 | 330 | 0.76 | 130 | Capillary and semi dry blotting, liquid buffer for DANN and RNA Liquid buffer, highest absorbency | 580 x 600 50 sheets 300 x 600 50 sheets |
| BF4 | 550 | 1.3 | 160 | 580 x 600 25 sheets |
| 1600 | 250 | 0.50 | 75 | | Slot and Dot processes ,gel-lifting, buffer-wicking, semi dry blotting | | 460 x 570 100 sheets 580 x 600 100 sheets |
| FN100 | 195 | 0.35 | 130 mm/30 min | 460 x 570 50 sheets 580 x 600 50 sheets |
| 其他尺寸根据用户要求制定 |