Quantitative Analytical Filter Paper
We provide a variety of filter papers with different pore sizes and diameters. If you require a specific pore size or diameter that is not available or is currently out of stock, please contact us via email at info@labware.com.hk for further assistance with your order.
LabPro's grades: QT40 | QT41 | QT42 | QT43 | QT44
The quantitative or ashless filter papers are made with 100% high quality cotton linter fibres, which go through a severe chemical process. They have been washed out with a specific acid treatment and finally cleaned from impurities with demineralized water. This process allows reaching an ash content below 0.01%. These papers are used to count during demanding analysis.
Specifications
Pack Size: 100 per box
Brand: LabPRO
Made in France
QT40: Medium filtration quantitative filter paper.
| Weight (g/m2) DIN 53104 |
Thickness (mm) | Pore size (μm) | Filtration speed (sec) DIN 53137 |
Ash content |
| 84 | 0.2 | 14-18 | 55 | <0.01 |
*Equative with Whatman: 40
QT41: Very fast filtration quantitative filter paper.
| Weight (g/m2) DIN 53104 |
Thickness (mm) | Pore size (μm) | Filtration speed (sec) DIN 53137 |
Ash content |
| 84 | 0.2 | 25-30 | 9 |
<0.01 |
*Equative with Whatman: 41
QT42: Very slow filtration quantitative filter paper.
| Weight (g/m2) DIN 53104 |
Thickness (mm) | Pore size (μm) | Filtration speed (sec) DIN 53137 |
Ash content |
| 84 | 0.17 |
2-4 |
140 | <0.01 |
*Equative with Whatman: 42
QT43: Fast filtration quantitative filter paper.
| Weight (g/m2) DIN 53104 |
Thickness (mm) | Pore size (μm) | Filtration speed (sec) DIN 53137 |
Ash content |
| 84 | 0.2 | 20-25 | 27 |
<0.01 |
*Equative with Whatman: 43
QT44: Slow filtration quantitative filter paper.
| Weight (g/m2) DIN 53104 |
Thickness (mm) | Pore size (μm) | Filtration speed (sec) DIN 53137 |
Ash content |
| 74 | 0.16 | 7-9 | 100 |
<0.01 |
*Equative with Whatman: 44
