://Qualitative 20 Micron Filter Paper Grade: BIO-4

Qualitative 20 Micron Filter Paper Grade: BIO-4

Grade: BIO-4
Particle Retention: 20μm
Product Appearance: Smooth
Filtration Speed: Fast
Ash Content(%): <0.06
Thickness(mm): 205
Basis Weight(g/m²): 96
Wet Burst(psi): 0.7

Description

Description of 20 micron filter paper BIO-4

Hawach BIO-4 qualitative filter paper in laboratory 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 is an ideal for substitute 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.

Hawach Scientific Co., Ltd is a China qualitative and quantitative filter paper manufacturer and supplier, who produces full range size filter paper to meet your chemical and biology experiment.

Features of 20 micron filter paper BIO-4

1. BIO-4 is equivalent to Whatman Grade 4
2. The 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, 300mm
3. The filter papers have a broad pH tolerance and are thermostable up to 120°C
4. 20 micron qualitative filter paper

Advantages of filter paper in laboratory

1. ISO9001 & CE Double approved
2. According to figure: round and square, accept OEM service
3. Manufactured from alpha-cellulose and high-quality cotton linters
4. High purity and consistent performance
5. Lowest ashless content: < 0.1%

Applications of filter paper in laboratory

1. Monitoring air pollution with reagent immersion
2. Natural filtration is generally used, and the separation of the test liquid and the solid is performed by using the filter paper body and the 1. ability to trap solid particles;
3. It is best not to filter hot concentrated sulfuric acid or nitric acid solution
4. Determination of oil and grease in the volatile acid in flour, malt sugar,
5. Citric acid and sodium in drugs

Grade Comparison

Hawach Scientific Co., Ltd Whatman Advantec Munktell Ahlstrom Macherey Nagel Sartorius
BIO-4 Grade 4 1 1288/3 631 1670 604

Guide for Filter Paper

Technical Data

Grade Particle
Retention
Product
Appearance
Filtration
Speed
Ash Content
(%)
Basis Weight
(g/m2)
Wet Burst
(mm H2O)
BIO-4 20μm Smooth Fast <0.1 84 > 120

Ordering Information

Item # Description
BIO-4-055 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 55mm, 100pcs/pk
BIO-4-070 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 70mm, 100pcs/pk
BIO-4-090 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 90mm, 100pcs/pk
BIO-4-110 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 110mm, 100pcs/pk
BIO-4-125 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 125mm, 100pcs/pk
BIO-4-150 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 150mm, 100pcs/pk
BIO-4-180 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 180mm, 100pcs/pk
BIO-4-185 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 185mm, 100pcs/pk
BIO-4-240 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 240mm, 100pcs/pk
BIO-4-270 Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 270mm, 100pcs/pk
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