9 cm Lab Filter Paper, Standard Qualitative Grade 2 - ZENPORE Slow Flow 90 mm (1

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9 cm Lab Filter Paper, Standard Qualitative Grade 2 - ZENPORE Slow Flow 90 mm (100 Discs)
Description
Size
9 cm diameter
GRADE 2 : 9cm - Equivalent to Whatman qualitative grade 2, standard lab filter paper (90mm)
AGRICULTURE - Soil pre-filtration, fertilizer analysis, nutrient absorption in seed tests
BREWING TESTS - Beer and malt analysis, removal of turbidity in wort and yeast filtration
AIR / GAS FILTRATION - Pollution monitoring of specific atmospheric contaminants, smoke
HIGH RETENTION / SLOW FLOW - Retains fine crystalline particles (5~10 micron)
Size:
9 cm diameter
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
paper :
pure cotton cellulose
flow :
slow
retention :
5~10 μm
(fine)
speed :
40~45 s
(10ml DIN 53137)
size :
⌀ 90 mm
thickness :
160 μm
weight :
86 g/m²
ash :
0.1%
qty :
100 discs
PLAIN-DISCS
These
Flat Discs
are suitable for gravity and Buchner low suction vacuum filtration.
The same affordable filters are also available funnel-ready as
ST002-90q
(folding) or
ST002-90v
(pleating).
EQUIVALENCE & SIZE
See the cross-reference table and size diagrams in the photos to choose the appropriate reference and diameter of your circles.
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RETURNS
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