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Home  » Categories »  Ahlstrom Brand Laboratory Filters »  Ahlstrom Qualitative Filter Papers »  Ahlstrom Standard Qualitative Filter Papers »  Ahlstrom Standard Grade 642 Filter Qualitative Papers

Ahlstrom Standard Grade 642 Filter Qualitative Papers

Ahlstrom Standard Grade 642 Filter Qualitative Papers   Ahlstrom 642 has finer particle retention slightly lower filtration speed and higher absorption than Ahlstrom 601. This low ash grade contains more than 95% super refined alpha-cellulose and linter fibers. Flow rate: medium. Retention: 2.0 microns.

Ahlstrom offers a complete range of low ash filter papers for general laboratory work that provides you with the correct combination of particle retention filtration speed loading capacity and wet-strength. All our qualitative grades consist of > 95% super refined α-cellulose and linter fibers.

  • Ahlstrom Laboratory Filter Catalog
  • About Ahlstrom Filter Grades (pdf)


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    6420-0425 Ahlstrom Qualitative Filter - Grade 642
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    6420-0425
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$6.40
    Our Price US$5.43
    4.25 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
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    Ahlstrom Qualitative Filter - Grade 642

    US$5.43
    Code: 6420-0425
    4.25 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-0470 Ahlstrom Qualitative Filter - Grade 642
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    6420-0470
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$6.62
    Our Price US$5.63
    4.7 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$5.63
    Code: 6420-0470
    4.7 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-0550 Ahlstrom Qualitative Filter - Grade 642
    Click For More Info

    6420-0550
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$6.60
    Our Price US$5.61
    5.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$5.61
    Code: 6420-0550
    5.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-0700 Ahlstrom Qualitative Filter - Grade 642
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    6420-0700
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$6.95
    Our Price US$5.91
    7.0 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$5.91
    Code: 6420-0700
    7.0 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-0750 Ahlstrom Qualitative Filter - Grade 642
    Click For More Info

    6420-0750
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$6.95
    Our Price US$5.91
    7.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$5.91
    Code: 6420-0750
    7.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-0900 Ahlstrom Qualitative Filter - Grade 642
    Click For More Info

    6420-0900
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$8.34
    Our Price US$7.09
    9.0 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$7.09
    Code: 6420-0900
    9.0 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-1100 Ahlstrom Qualitative Filter - Grade 642
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    6420-1100
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$10.38
    Our Price US$8.81
    11 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$8.81
    Code: 6420-1100
    11 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-1250 Ahlstrom Qualitative Filter - Grade 642
    Click For More Info

    6420-1250
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$13.41
    Our Price US$11.40
    12.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$11.40
    Code: 6420-1250
    12.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-1500 Ahlstrom Qualitative Filter - Grade 642
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    6420-1500
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$15.13
    Our Price US$12.86
    15 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$12.86
    Code: 6420-1500
    15 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    6420-1850 Ahlstrom Qualitative Filter - Grade 642
    Click For More Info

    6420-1850
    Ahlstrom Qualitative Filter - Grade 642

    Retail Price US$22.06
    Our Price US$18.75
    18.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
    click to see more

    Ahlstrom Qualitative Filter - Grade 642

    US$18.75
    Code: 6420-1850
    18.5 cm diameter circles - Grade 642 Ahlstrom Qualitative Filter - 100/pk

    *A $200.00 minimum purchase on all Ahlstrom product orders. You can mix different Ahlstrom products to meet this minimum.
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