GRADE 2 STANDARD Qualitative Filter Paper
Equivalent to Whatman grade 2, this laboratory filter paper is widely used for standard fine filtration when you need to separate a solid or precipitate from the filtrate.
Made from high alpha-cellulose cotton, this standard lab filter is not intended for ashing.
APPLICATIONS
- science : General filtration in the 8 ?m range, clarification of cloudy suspension in labs
- food : Determination of total fat content in foodstuff and dairy, unsaponifiable fraction in fats and oils (fluted)
- beverage : Beer and malt analysis, removal of turbidity from wort and removal of yeast after fermentation (fluted)
- agriculture : Prefiltration of soil, hold nutrient in plant growth trials
- environment : Air polution monitoring of specific atmospheric contaminants and black smoke
HIGH RETENTION
Retains fine crystalline and organic precipitates around 8μm like:
- Metal Sulfides (Cd, Ni, Zn, Fe, Pb, Mn, Ag, As)
- Ba Sulfate, Pb Chromate, Mg oxide
- Ca Oxalate (cold), Ca Fluoride, Pb Dioxide
SPECS
- paper : pure cotton cellulose
- flow : slow
- retention : 5~10 μm (fine)
- speed : 40~45 s (10ml DIN 53137)
- size : ⌀ 70 mm
- thickness : 160 μm
- weight : 86 g/m²
- ash : 0.1%
- qty : 100 discs
PLAIN-DISCS
Those Flat Discs are suitable for gravity and Buchner low suction vacuum filtration.
The same affordable filters are also available funnel-ready as ST002-70q (folding) or ST002-70v (pleating).
EQUIVALENCE & SIZE
See the cross-reference table and size diagrams in the photos to choose the appropriate reference and diameter of your circles.
