Whatman

• Grade 4: 20-25 µm

• Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide

• Very useful as a rapid filter for routine clean-up of biologica

• Kieselguhr paper with a medium to slow flow rate

• Additional adsorption effect (e.g., for the separation of very fine semi-colloidal turbidity, for clarifying milk serum, starch solutions, soil suspensions or sugar-containing solutions pri

• Grade 2: 8 µm

• Slightly more retentive than Grade 1 with a corresponding increase in filtration time (ie. slightly slower filtration speed)

• More absorbent than Grade 1

• Grade 602 h: < 2 µm

• A dense filter paper for collecting very small particles and removing fine precipitates

• Used in sample preparation (e.g., in the beverage industry for residual sugar determination, acidic spectra, refractome

• Grade 6: 3 µm

• Twice as fast as Grade 5 with similar fine particle retention

• Often specified for boiler water analysis applications

• Grade 1: 11 µm

• The most widely used filter paper for routine applications with medium retention and flow rate

• In agriculture, it is used for soil analysis and seed testing procedures

• In the food industry, Grade 1 is use

• Grade Shark Skin: 8-12 µm

• Creped, medium to slow filter paper

• Resistant to weak acids and bases

• Often used as a protective paper for filter press cloths, processing of cocoa butter and edible oils

• Grade 597: 4-7 µm

• A medium fast filter paper with medium to fine particle retention

• Used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or re

• Grade 597: 4-7 µm

• A medium fast filter paper with medium to fine particle retention

• Used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or re

• Grade 4: 20-25 µm

• Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide

• Very useful as a rapid filter for routine clean-up of biologica

• Low phosphate papers, approximately 1.5 ppm phosphate, for the filtration of calcium lactate extracts from soil samples for the determination of K and P according to Egnér, Riehm, and Lederle

• Grade 2: 8 µm

• Slightly more retentive than Grade 1 with a corresponding increase in filtration time (ie. slightly slower filtration speed)

• More absorbent than Grade 1

• Grade 602 h: < 2 µm

• A dense filter paper for collecting very small particles and removing fine precipitates

• Used in sample preparation (e.g., in the beverage industry for residual sugar determination, acidic spectra, refractome

• Grade 3MM Chr

• Widely used as a blotting paper

• Also used in electrophoresis and for general chemistry

• A medium thickness paper (0.34 mm) used extensively for general chromatography and electrophoresis

• Flow

• Grade 1: 11 µm

• The most widely used filter paper for routine applications with medium retention and flow rate

• In agriculture, it is used for soil analysis and seed testing procedures

• In the food industry, Grade 1 is use

• Grade Shark Skin: 8-12 µm

• Creped, medium to slow filter paper

• Resistant to weak acids and bases

• Often used as a protective paper for filter press cloths, processing of cocoa butter and edible oils

• Grade 597: 4-7 µm

• A medium fast filter paper with medium to fine particle retention

• Used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or re

• Grade 4: 20-25 µm

• Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide

• Very useful as a rapid filter for routine clean-up of biologica