://Qualitative Filter Paper Grade: BIO-4

Qualitative 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

Hawach Scientific Co., Ltd BIO-4 filter paper is a star product equivalent to Whatman’s Grade 4 with 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.

Features

BIO-4 is equivalent to Whatman Grade 4
55, 70, 90, 110, 125, 150, 180, 185, 240, 270, 300mm diameter or OEM size in available
The filter papers have a broad pH tolerance and are thermostable up to 120°C

Advantages

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

Applications

Monitoring air pollution with reagent immersion
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 ability to trap solid particles;
It is best not to filter hot concentrated sulfuric acid or nitric acid solution
Determination of oil and grease in the volatile acid in flour, malt sugar,
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

hawachfilterpaper-Guide

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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