10 in stock
Quantitative filter papers –
Hardened ashless grades
Hardened ashless filter papers are suited for a variety of precipitate sizes.
Along with general filtration
Grade 540, the range includes Grade 542 for retention of fine precipitates and Grade 541 for fast filtration.
All three grades are designed for use in gravimetric analysis.
These filter papers exhibit high wet strength and chemical resistance and are acid hardened, which reduces
ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical
filtration operations.
Each grade offers a convenient combination of filtration speed and particle retention.
Rs.1,942.50 – Rs.7,807.50
Grade 541: 22 μm-
Fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during
gravimetric analysis. Typical applications include fiber in animal foodstuffs, gelatin in
milk and cream, chloride in cement, and chloride and phosphorus in coal and coke.
| Variation Codes | 1541-042, 1541-047, 1541-070, 1541-090, 1541-125, 1541-150 |
|---|
Grade GF10 Reel 35 mm x 30 m Core 70 mm 1/PK
This filter with extreme mechanical stability and temperature resistant up to 180°C is used
as a weighing aid for infrared weighing and as a roll filter in automatic air filtration units.
Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed).
More absorbent than Grade 1. In addition to general filtration in the 8 μm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials.
Also used for monitoring specific contaminants in the atmosphere and in soil testing.
Cellulose extraction thimbles are produced from high-quality alpha cellulose cotton
linter and have excellent mechanical strength and retention.
Standard single thickness thimbles have a wall thickness of approximately 1 mm
(10.0 μm nominal particle retention).
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