Qualitative 20 Micron Filter Paper Grade: BIO-4

Description of 20 Micron Filter Paper Grade 4

Hawach BIO-4 qualitative lab filter paper is standard-grade filter paper for routine applications. BIO-4 filter paper material is alpha-cellulose and cotton linter. BIO-4 20 micron filter paper is ideal for substituting the Whatman grade 4, and with a more competitive price, which has a low retention rate and fast flow rate(20μm). General filtration for laboratory use, pore size is about 20 microns, fast flow rate, ash content less than 0.1%, gram weight 84g, wet bursting degree greater than 120mm water column. The difference from filter paper 1 micron is that the filtration speed of 20 micron filter paper is faster.

Hawach Scientific Co., Ltd is a Chinese qualitative and quantitative micron filter manufacturer and supplier that produces a full range size filter papers to meet your chemical and biology experiments.

Features of 20 Micron Lab Filter Paper

• BIO-4 is equivalent to Whatman Grade 4.
• Micron filter manufacturer;
• 20 micron qualitative filter paper;
• Has a broad pH tolerance and is thermostable up to 120°C;
• Diameter of BIO-4 is the same as qualitative filtration filter paper grade 2, which are 55, 70, 90, 110, 125, 150, 180, 185, 240, 270, and 300mm.

Advantages of Lab Filter Paper

• Micron filter manufacturer passed ISO9001 & CE double approval.
• Lab filter paper is manufactured from alpha-cellulose and high-quality cotton linters.
• Lowest ashless content: < 0.1%;
• High purity and consistent performance;
• According to the figure, round and square accept OEM service.

Applications

• Citric acid and sodium in drugs;
• Monitoring air pollution with reagent immersion;
• Determination of oil and grease in the volatile acid in flour, malt sugar.
• It is best not to filter hot concentrated sulfuric acid or nitric acid solution.
• Natural filtration is generally used, and the separation of the test liquid and the solid is performed by using the filter paper body and its ability to trap solid particles.

Grade comparison by micron filter manufacturer provided

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