Whatman quantitative filter paper, hardened ashless, Grade 542, circles, diam. 90 mm, pack of 100

SKU:
WHA1542090
  • $52.20

    • Description

    Whatman® quantitative filter paper, hardened ashless, Grade 542, circles, diam. 90 mm, pack of 100

    Synonym(s):
    Whatman filter, Z241466, filter paper, paper filter
    NACRES:
    NB.24

    PROPERTIES

    material

    circles
    cotton filters (high-quality cotton linters)

    packaging

    pack of 100

    manufacturer/tradename

    Whatman 1542-090
    Whatman Article No. 28418249 (US reference)

    parameter

    2510 sec/100 mL speed (Herzberg)
    6 psi wet burst

    diam.

    90 mm

    thickness

    150 μm

    ash

    ≤0.006%

    pore size

    2.7 μm (Particle retention)

    basis weight

    93 g/m2

    General description

    These are the supreme hardened ashless quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.

    Grade 542: 2.7 μm (slow filter paper)
    High retention of fine particles under demanding conditions. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations.

    Other Notes

    Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

    Legal Information

    Whatman is a registered trademark of Cytiva