[Hawach Scientific] Qualitative Filter Paper Grade: BIO-4

Grade Comparison

BIO-4

Grade 4

1

1288/3

631

1670

604

 

Grade: BIO-4
Equivalent to Whatman Grade 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 of Filter Paper 4

Hawach bio filter paper 4 is equivalent to Whatman grade 4, which has a very fast filtration speed(pore size: 20-25μm) and can very well trap coarse particles and colloidal deep substances, such as iron hydroxide and aluminum hydroxide, which is very suitable for rapid biological or organic extracts in daily analysis filters.

When monitoring high-velocity air pollution, filter paper 4 can also be used if it is not necessary to trap fine particles. BIO-4 qualitative filter paper is very suitable for the rapid filtration of conventional biological liquid and organic leach in the analysis. In air pollution monitoring, a high velocity is only required but the collection of fine particles is not strict.

Advantage of Filter Paper 4

• Hawach filters all acquire the ISO9001 & CE certificates
• Full range of common sizes and provide customized services
• All the filter paper produced under the strict sanitary monitoring
• Manufactured from alpha-cellulose and high-quality cotton linters
• High purity and good performance
• Pre-cut qualitative filter paper is convenient for you to use
• Equivalent to Whatman Grade 4

Features

1. Extremely fast filtration rate, able to capture coarse particles and gelatinous precipitates such as iron hydroxide and aluminum hydroxide
2. Fast retention with pore size 20-25μm
3. Common size and type available, also can customize for people to operate.

Applications

It is very suitable for the rapid filtration of biological or organic extracts in daily analysis.
It is also suitable for the filtration of coarse granules, culture media, and colloidal sediments.