Whatman 1004-930 Quantitative Filter Paper Sheet, 20-25 Micron, 3.7 s/100mL/sq inch Flow Rate, Grade 4, 580mm Length x 580mm Width (Pack of 100)

This Whatman 58 x 58cm, grade 4, cellulose filter paper sheet is used in qualitative analytical techniques to determine and identify materials. It is extremely fast filtering. It provides excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminium 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. 100/Pack. Whatman #: 1004-930.

• 58 x 58cm
• Grade 4
• 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 aluminium hydroxide
• Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical