Circles, quantitative, green ribbon equivalent, grade 1020

The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.

Grade 1020, slow filtering, particle retention 3-5 µm, filtration speed 100 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm

For fine-grained precipitates (e.g. lead oxide, calcium fluoride, nickel sulphide, zinc sulphide).

Ø PK Cat. No.
mm
1 42.5 100 7697830 Open webshop
2 55 100 7697831 Open webshop
3 70 100 7697832 Open webshop
4 90 100 7697833 Open webshop
5 110 100 7697834 Open webshop
6 125 100 7697835 Open webshop
7 150 100 7697836 Open webshop
8 185 100 7697837 Open webshop
9 210 100 7697838 Open webshop
10 240 100 7697839 Open webshop
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