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Whatman™ Quantitative Filter Paper: Grade 42 Circles

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

$40.81 - $660.17

Specifications

Format Circle
Grade 42
Pore Size (Metric) 2.5μm
Porosity Fine
View More Specs


Products ${productFamilyLength}
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
09-855AA Whatman™
1442055
55mm Pack of 100 Each for $47.85
09-855A Accessories Whatman™
1442070
70mm Pack of 100 Each for $57.31
09-855B Accessories Whatman™
1442090
90mm Pack of 100 Each for $76.46
09-855D Accessories Whatman™
1442125
125mm Pack of 100 Each for $107.67
09-855E Accessories Whatman™
1442150
150mm Pack of 100 Each for $136.42
09-856B Accessories Whatman™
1442240
240mm Pack of 100 Each for $322.23
09-856A Accessories Whatman™
1442042
425mm Pack of 100 Each for $40.81
09-855F Accessories Whatman™
1442185
185mm Pack of 100 Each for $201.48
09-856D Accessories Whatman™
1442320
320mm Pack of 100 Each for $660.17
09-855C Accessories Whatman™
1442110
110mm Pack of 100 Each for $93.42
Specifications

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.
  • Ashless: 0.007% ash maximum
  • Fine (2.5 µm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
  • Herzberg filtration speed of 1870 s
  • Commonly used as a calcium carbonate filter

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Description & Specifications

Specifications

Circle
42
2.5μm
Fine