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GE Healthcare Whatman™ Quantitative Filter Paper: Grade 40 Circles

Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.

$40.43 - $704.45

Specifications

Material High-quality cotton linters
Format Circles
Grade Grade 40
Pore Size (Metric) 8μm
Porosity Medium
View More Specs

Products 13
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
09-927-541 View Documents GE Healthcare
1440012
12.7mm Pack of 400 Each for $40.43
 
09-845H Accessories View Documents GE Healthcare
WHT1440042
42.5mm Pack of 100 Each for $51.33
 
09-800-969 View Documents GE Healthcare
1440047
47mm Pack of 100 Each for $53.51
 
09-845A Accessories View Documents GE Healthcare
1440055
55mm Pack of 100 Each for $56.68
 
09-845B Accessories View Documents GE Healthcare
1440070
70mm Pack of 100 Each for $59.00
 
09-845C Accessories View Documents GE Healthcare
1440090
90mm Pack of 100 Each for $82.01
 
09-845D Accessories View Documents GE Healthcare
1440110
110mm Pack of 100 Each for $97.30
 
09-845E Accessories View Documents GE Healthcare
1440125
125mm Pack of 100 Each for $110.34
 
09-845F Accessories View Documents GE Healthcare
1440150
150mm Pack of 100 Each for $146.31
 
09-845G Accessories View Documents GE Healthcare
1440185
185mm Pack of 100 Each for $216.11
 
09-845K Accessories View Documents GE Healthcare
1440240
240mm Pack of 100 Each for $214.07
 
09-845M Accessories View Documents GE Healthcare
1440320
320mm Pack of 100 Each for $704.45
 
09-845J Accessories View Documents GE Healthcare
1440329
30mm Pack of 100 Each for $41.28
 
Description

Description

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.
  • High-purity filters for quantitative analysis
  • Contain 0.007% maximum ash content
  • Medium nominal particle retention rating of 8µm
  • Medium filtration speed (Herzberg 340 sec.)

Suited for
  • Soil analysis, when separating solid matter from aqueous extracts
  • Quantitative determination of milk sediment
  • Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
  • Analysis of constituent components in cements, clays, iron, and steel products
  • Collection of trace elements and radionuclides from the atmosphere
Specifications

Specifications

High-quality cotton linters
Grade 40
Medium
210μm
Circles
8μm
Medium