Grade 4 Qualitative Paper 58x58CM 1004-930

• 58 x 58cm Sheet Size
• Whatman™ Grade 4 Qualitative Filter Paper
• Used in qualitative analytical techniques to determine and identify materials
• Extremely fast filtering; provides excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
• Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical

This Whatman™ 58 x 58cm grade 4 cellulose filter paper sheet is used in qualitative analytical techniques to determine and identify materials. Extremely fast filtering. It provides excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. It is very useful as a rapid filter for routine cleanup of biological fluids or organic extracts during analysis. This filter paper is used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. Retention: 20-25µm. Dimensions: 58 x 58cm Sheet.