Product Description
Whatman Filter Paper – Grade 3
WET STRENGTH
L – Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of paper
M – Will withstand all normal use on Buchner Funnels or others devices under suction or moderate pressure
H – High wet strength and high chemical resistance
|
Grade No |
Flow rate |
Retention microns |
Wet Strength |
Thickness, mm |
Ash % |
|
|
3 |
Double the thickness of No.1 |
Medium |
6 |
M |
0.39 |
0.06 |
Available Sizes:
- Circles: 23 mm to 320 mm (available prepleated)
- Sheets: 26 x 31 mm to 600 x 600 mm
Properties
- Particle retention1: 6µm
- Nominal thickness: 390 µm
- Nominal basis weight: 185 g/m2
- Nominal ash content2: 0.06%
Applications
Grade 3 is double the thickness of Grade 1, so it can hold more precipitate without clogging and has increased wet strength.
It is designed for use in Büchner funnels, and the high absorbency makes Grade 3 well suited for sample transport after collection.
