Whatman™ Grade 4 Qualitative Filter Paper

Provides a variety of filtration applications when fine particulate collection is not required. Whatman™ Grade 4 Qualitative Filter Paper can be used as a rapid filter for biological clean-up or during extraction of organic materials.

Brand: Whatman™

Manufacturer Part Number: 1004-185

X100 FILTER PAPERS, NO.4 DIAMETER 18.5CM(1004 185) (PACK OF 100)

UNSPSC: 41104929

Code: 69

Additional Details:
Additional Details: Weight: 0.30000kg

Product Code. 10419691

Quantity Price
1 £43.73 / Pack of 100
In Stock 6
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  • Description and Specification
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  • Documentation
Description and Specification


Quantity 100Pack
Diameter (Metric) 185mm
Grade 4
Material Cellulose
Thickness (Metric) 210μm
Pore Size (Metric) 20 to 25μm
Particle Retention Coarse particles and gelatinous precipitates
Flow Rate Fast
Format Circle

Used in air-pollution monitoring and routine cleanup of biological fluids
  • Retains coarse particles, gelatinous precipitates
  • Particle retention: >20–25μm
  • Porosity: Coarse
  • Filtration speed†: Herzberg, 37 sec.
  • Surface: Smooth

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