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    What is Grade 50C?

    Johnson Test Papers’ Grade 50C is a standard grade glass filter found in many environmental applications offering a smaller pore size than 50A (1.2 µm), with a slightly slower filtration speed. The properties of 50C filters are a standard in the determination of liquid scintillation counting and total suspended solids collection in potable water and in industrial waste. In biochemical tests, Grade 50C is suited for cell harvesting and the analysis of carbohydrates.

    Johnson Test Papers offers glass microfibre filters with a range of pore sizes and thicknesses. Browse other binder-free glass filters to find the right filters for your needs.

    Total Suspended Solids Filter

    Grade 50C filters from Johnson Test Papers are widely used as a total suspended solids filter for applications testing both potable water and waste water. Grade 50C can be used for

    • Liquid scintillation counting filtration
    • Cell Harvesting
    • Industrial waste analysis
    • Binding assays that require high loading capacity
    • Analysis of carbohydrates by means of hydrolysis, filtration of solvents, cellular crops, clarification of samples, etc. where cellulose fibres are an inconvenience

    Whatman Cross Reference = No.GFC
    Speed class Medium / Fast, very high loading
    Thickness (mm) 0.26
    Pore size (μM) 1.2
    Weight (g/m²) 52
    Filtration Speed (sec*) 100
    Burst Strength (Kg/cm²) 20
    *According to DIN 53137
    Diameter (mm) Product Code
    mm: 21 Product code: 50C021
    mm: 24 Product code: 50C024
    mm: 25 Product code: 50C025
    mm: 47 Product code: 50C047
    mm: 55 Product code: 50C055
    mm: 90 Product code: 50C090
    mm: 110 Product code: 50C110
    mm: 125 Product code: 50C125