Whatman™ Quantitative Filter Paper: Grade 41 Sheets

Name: Whatman™ Quantitative Filter Paper: Grade 41 Sheets
SKU: FKS11310474

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. Fisherbrand™ Quantitative Filter Paper: Grade 41 Sheets are commonly used in preparing samples for metal analysis after nitric acid digestion.

Catalog Number	Dimensions (L x W)
FKS11310474	570 x 460 mm

Catalog number FKS11310474

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Dimensions (L x W):

570 x 460 mm

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,460 × 570 mm sheet (100 pcs)

Filter TypeAshless

FormatSheet

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

Dimensions (L x W)570 x 460 mm

Length (Metric)570 mm

Width (Metric)460 mm

Unit SizePK