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    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.

    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
    Diameter (mm) Product Code
    mm: 55 Product code: 302055
    mm: 70 Product code: 302070
    mm: 90 Product code: 302090
    mm: 110 Product code: 302110
    mm: 125 Product code: 302115
    mm: 150 Product code: 302150
    mm: 185 Product code: 302185
    mm: 240 Product code: 302240
    mm: 300 Product code: 302300
    mm: 320 Product code: 302320