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Evergreen Engineering & Resources
18-G, Jalan Semenyih Sentral 2,
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Whatman Filter Paper No.4 Qualitative, General Application

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Whatman Filter Paper No.4 Qualitative, General Application

Filter Paper, No.4 Qualitative, General Application

Description

General description
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 4: 20-25 μm, (very fast filter paper)
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.


Technical Specification
Brand Product code Diameter ( cm ) PACKING QTY
Whatman 100-4027 2.7 100/ Box
Whatman 100-4047 4.7 100/ Box
Whatman 100-4055 5.5 100/ Box
Whatman 100-4070 7.0 100/ Box
Whatman 100-4090 9.0 100/ Box
Whatman 100-4110 11.0 100/ Box
Whatman 100-4125 12.5 100/ Box
Whatman 100-4150 15.0 100/ Box
Whatman 100-4185 18.5 100/ Box
Whatman 100-4240 24.0 100/ Box
Whatman 100-4270 27 100/ Box
Whatman 100-4320 32 100/ Box
Whatman 100-4400 40 100/ Box
Whatman 100-4917 46 x 57 100/ Box