The range of wet strengthened filters offers the same low ash content as quantitative filters but are also more resistant when they are wet thanks to the binder used for its production. They are especially recommended for acid filtration. Very slow filtration quantitative filter paper with binder for a better performance when wet.

• Equivalent to Whatman grade 542
• Recommended for very slow filtration
• Weight: 84g/m²
• Thickness: 0.17mm
• Pore size: 2 - 4µm
• Filtration speed: 195s
• Supplied as plain discs