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Whatman™ Qualitative Filter Paper: Grade 4 Circles

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Brand:  Whatman™ 1004-090

Code : 69

Additional Details : Weight : 0.06580kg

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Product Code. 11372845

Quantity Price
1 £14.15 / Pack of 100
10 £11.31 / Pack of 100
In Stock 12

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Description

Description

 

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids. 
  • Particle Retention: 25μm
  • Porosity: Coarse
  • Filtration speed: Herzberg, 37 sec.
  • Surface: smooth
  • Extremely fast filtering  with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
  • Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis
Specifications

Specifications

100Pack
4
210μm
Medium
Fast
90mm
Cellulose
20 to 25μm
Coarse particles and gelatinous precipitates
Circle
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