Whatman™ Quantitative Filter Paper: Grade 41 Circles
Whatman™ Quantitative Filter Paper: Grade 41 Circles
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Fisherbrand

Whatman™ Quantitative Filter Paper: Grade 41 Circles

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.
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Catalog NumberDiameter (Metric)
FKS11392945110 mm
FIS09-850C110 mm
FIS09-850D125 mm
FIS09-850E150 mm
FKS11312955150 mm
FKS1136046432 mm
Catalog number FKS11392945
Price (SGD)
202.00
PK
Add to cart
Diameter (Metric):
110 mm
Price (SGD)
202.00
PK
Add to cart
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 Rate4 s/100 mL/in2
DescriptionGrade 41 Fast Ashless Filter Paper, 110 mm circle (100 pcs)
Filter TypeAshless
FormatDisc
MaterialCotton Linters
Particle Retention20 μm
Pore Size20 μm
Filtration SpeedASTM, 12 seconds; Herzberg, 54 seconds
Flow RateFast
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
GradeGrade 41
PorosityCoarse
Quantity100 Pk.
Thickness (Metric)215 μm
TypeQuantitative Filter Paper
Diameter (English)4.33 in.
Diameter (Metric)110 mm
Unit SizePK