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302

What is Grade 302?

Grade 302 is a thick smooth paper, suitable for the removal of fine particles. This paper is made with 100% pure cellulose fibres that have been strengthened to resist the pressure when they are used in filter press systems. There is therefore no contamination danger during transfer steps. This high absorbency grade is twice as thick as Grade 301 with a bigger pore size. The extra thickness gives higher wet strength and loading capacity, enabling more precipitate to be held without clogging the filters and better handling. Grade 302 is also highly suitable for use in Buchner funnels and dye filtration.

Properties
Whatman Cross Reference = No.3
Speed class Medium Filtering
Thickness (mm) 0.3
Pore size (μM) 12-16
Weight (g/m²) 150
Filtration Speed (sec*) 65
Burst Strength (Kg/cm²) 3.90
*According to DIN 53137
Available Sizes
Diameter (mm) Product Code
55 302055
70 302070
90 302090
110 302110
125 302115
150 302150
185 302185
240 302240
300 302300
320 302320