Whatman

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Whatman Qualitative Filter Paper: Grade 4 Circles, 100/bx

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$43.95

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MFR:: 1004-150
Medex SKU:: WTM-1004-150
Packing Info:: 100/bx
Usually Ships:: 1 - 2 Business Days
Freight Quote Button:: False

Description

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.

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
Thickness (Metric) 210μm
Diameter (Metric) 150mm
Material Cellulose
Pore Size (Metric) 20 to 25μm
Particle Retention Coarse particles and gelatinous precipitates
Format Circle

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