Quantitative Grade, Hardened
| Grade No. | Flowrate | Retention microns | Wet strength | Thickness, mm | Ash % | |
| 54 | For filtration of coarse and gelatinous precipitates | Fast | 20-25 | High | 0.18 | 0.025 |
FILTER PAPER CIRCLES WHATMAN GRADE NO.54 18.5CM DIA BOX 100
Quantitative Grade, Hardened
| Grade No. | Flowrate | Retention microns | Wet strength | Thickness, mm | Ash % | |
| 54 | For filtration of coarse and gelatinous precipitates | Fast | 20-25 | High | 0.18 | 0.025 |