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  • Laboratory

    304

    What is Grade 304?

    This grade covers a wide range of laboratory applications and is used for clarifying liquids and for the rapid filtration of coarser precipitates such as lead sulfate, lead chromate, calcium oxalate, calcium carbonate, aluminum phosphate, barium carbonate and beryllium hydroxide. Grade 304 can be found in soil analysis, seed testing and in air pollution to collect dust-laden air and is also commonly used in the food industry to separate foodstuffs from associated extracting liquid.

    Whatman Cross Reference = No.1
    Speed class Medium Filtering
    Thickness (mm) 0.16
    Pore size (μM) 5-13
    Weight (g/m²) 73
    Filtration Speed (sec*) 88
    Burst Strength (Kg/cm²) 1.95
    *According to DIN 53137
    Diameter (mm) Product Code
    mm: 55 Product code: 304055
    mm: 70 Product code: 304070
    mm: 90 Product code: 304090
    mm: 110 Product code: 304110
    mm: 125 Product code: 304125
    mm: 150 Product code: 304150
    mm: 185 Product code: 304185
    mm: 240 Product code: 304240
    mm: 300 Product code: 304300
    mm: 320 Product code: 304320