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  5. Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles

Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles

Catalog No. p-6921046
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Diameter (Metric):
32 mm
42.5 mm
47 mm
50 mm
60 mm
70 mm
90 mm
110 mm
125 mm
150 mm
185 mm
240 mm
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Catalog No. Diameter (Metric)
09850G 42.5 mm
09850H 47 mm
09927697 50 mm
09927546 60 mm
09850A 70 mm
09850B 90 mm
09850C 110 mm
09850D 125 mm
09850E 150 mm
09850L 185 mm
09850M 240 mm
09850P 32 mm
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Catalog No. 09850G Supplier Cytiva Supplier No. 1441042
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Description

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

Ashless grades are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman™ quantitative filter papers are designed for gravimetric analysis and the preparation of samples for instrumental analysis.
  • Extremely low ash content (0.007% ash maximum)
  • 20μm nominal particle retention rating
  • Fast filtration speed (Herzberg 54 s)
  • Commonly used for routine air pollution analysis and soil pollution analysis
  • High-purity filters for quantitative analysis

Specifications

Airflow Rate 4 s/100 mL/in2
Description Grade 41 Fast Ashless Filter Paper, 42.5 mm circle (100 pcs)
Filter Type Ashless
Format Disc
Material Cotton Linters
Particle Retention 20 μm
Pore Size 20 μm
Filtration Speed ASTM, 12 seconds; Herzberg, 54 seconds
Flow Rate Fast
For Use With (Application) Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides).Also used in quantitative air pollution analys
Grade Grade 41
Porosity Coarse
Quantity 100 Pk.
Thickness (Metric) 215 μm
Type Quantitative Filter Paper
Diameter (Metric) 42.5 mm
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