Grade 4 Qualitative Paper 38x114MM OD 63MM ID 1/RL 1004-648

• Reel Size: 1.5 x 4.5-Inch (3.75 x 11.9cm)
• 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
• Sold Individually

This Whatman™ 1.5 x 4.5 inch grade 4 cellulose filter paper 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: 1.5 x 4.5 inch Reel. Per each.