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Filtre en cellulose de Whatman

Filtre en cellulose de Whatman

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Besoin de plus d'informations? (514) 354-2511 - 1-800-463-4363

Whatman cellulose filters are manufactured from high quality cotton linters which have been treated to achieve a minimum alpha cellulose content of 98%. These cellulose filter papers are used for general filtration and exhibit particle retention levels down to 2.5 µm. Whatman offers a wide choice of retention and flow rate combinations to suit numerous laboratory applications.

The different groups of cellulose filters offer increasing degrees of purity, hardness, and chemical resistance.

Cellulose Filter Selection - Trace Elements: typical values (ug/g of paper)
Grade 1 42 542 Grade 1 42 542
Aluminum < 0.5 2 1 Iron 5 6 3
Antimony < 0.02 < 0.02 < 0.02 Lead 0.3 0.2 0.1
Arsenic < 0.02 < 0.02 < 0.02 Magnesium 7 1.8 0.7
Barium < 1 < 1 < 1 Manganese 0.06 0.05 0.05
Boron 1 1 2 Mercury < 0.005 < 0.005 < 0.005
Bromine 1 1 1 Nitrogen 23 12 260
Calcium 185 13 8 Potassium 3 1.5 0.6
Chlorine 130 80 55 Silicon 20 < 2 < 2
Chromium 0.3 0.3 0.7 Sodium 160 33 8
Copper 1.2 0.3 0.2 Sulfur 15 < 5 < 2
Fluorine 0.1 0.2 0.3 Zinc 2.4 0.6 0.3

 

Etiquettes : Filtre, cellulose, Whatman

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