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Cytiva (Formerly GE Healthcare Life Sciences) 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.

$17.86 - $420.43

Specifications

Grade Grade 4
Pore Size (Metric) 20 to 25μm
Format Circles
Thickness 210 μm
Material Cellulose
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Products 13
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
Catalog Number Mfr. No. Diameter (Metric) Price Quantity  
09-825J
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004042
42.5 mm
Pack of 100 Each for $17.86
 
36-101-2981
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Cytiva (Formerly GE Healthcare Life Sciences)
1004047
47 mm
Pack of 100 Each for $20.75
 
09-825K
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004055
55 mm
Pack of 100 Each for $22.98
 
09-825A Edge
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Cytiva (Formerly GE Healthcare Life Sciences)
1004070
70 mm
Pack of 100 Each for $22.98
Edge
 
09-825B
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004090
90 mm
Pack of 100 Each for $28.19
 
09-825C
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004110
110 mm
Pack of 100 Each for $35.69
 
09-825D Edge
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Cytiva (Formerly GE Healthcare Life Sciences)
1004125
125 mm
Pack of 100 Each for $46.02
Edge
 
09-825E Edge
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Cytiva (Formerly GE Healthcare Life Sciences)
1004150
150 mm
Pack of 100 Each for $58.55
Edge
 
09-825F
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004185
185 mm
Pack of 100 Each for $86.83
 
09-825G
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004240
240 mm
Pack of 100 Each for $148.03
 
09-825L
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Cytiva (Formerly GE Healthcare Life Sciences)
1004270
270 mm
Pack of 100 Each for $194.01
 
09-825H
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004320
320 mm
Pack of 100 Each for $278.69
 
09-825M
Accessories View Documents
Cytiva (Formerly GE Healthcare Life Sciences)
1004400
400 mm
Pack of 100 Each for $420.43
 
Description

Description

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.

 

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

Grade 4
Circles
Cellulose
20 to 25μm
210 μm
SDS