1. Grade: BIO-41
2.Filtration Speed: Fast
3.Pore ​​sizes: 20μm-25μm
3.Disc: 55, 70, 90, 110, 125, 150, 180, 185, 240, 270mm, or OEM

Availability: In Stock

Description of No. 41 Filter Paper:

Hawach No. 41 filter paper is the toughest ashless filter paper for the analysis of large particles or colloidal precipitates, such as iron or aluminum hydroxides.Pore ​​sizes: 20μm-25μm.

Features of HAWACH No. 41 Filter Paper:

  • Particle retention: 20μm-25μm
  • Flow rate: fast
  • High chemical resistance and very low ash content, ash content <0.007%
  • All sizes, like HAWACH No. 41 25 micron filter paper are known for their smooth surface, local purity, and good filtering effect.

Application:

  1. Filtration of coarse particles and gel precipitates
  2. Rapid determination of gaseous compounds by saturating paper strips for specific gravity analysis of air pollution
  3. Filter digestion solution for spectroscopic, chromatographic, or mass spectrometry analysis
  4. No. 41 filter paper is also the base for standard tear test paper.
  5. The fastest flow ashless filter paper for a wide range of critical filtration processes.
  6. Recommended for analytical processes such as aluminum hydroxide or ferric hydroxide, and also for the filtration of large particles or gel precipitates, such as for the determination of iron in iron ore, magnesium in magnesia
  7. And often As the measurement of ambient air pollutants, such as sampling of suspended particulate matter, gaseous compounds (such as fluoride), or filtering and digesting solution for spectral, chromatographic, or mass spectrometry analysis, such as the determination of picric acid turbidity, pectic acid in food, etc.
  8. And all sizes, like HAWACH No. 41 25 micron filter paper are used for fast flow rate determination of gaseous compounds in quantitative air pollution analysis.

In addition, HAWACH also offers slow flow No. 42 filter paper and medium flow No. 40 filter paper to choose from.

Selection Guide for Filter Paper

filter paper selection

Grade Comparison

HawachWhatmanAdvantecMunktellAhlstromMacherey Nagel
BIO-41Grade 41700M/389n/a640m

Technical Data

GradeParticle
Retention
Product
Appearance
Filtration
Speed
Ash Content
(%)
Basis Weight
(g/m2)
Wet Burst
(mm H2O)
BIO-4120-25μmSmoothFast< 0.007104> 180

Ordering Information

Item #DescriptionNO.pore sizeflow ratediameterpack
BIO-41-055

Quantitative Filter Paper

Grade 4120μmFast55mm100pcs/pk
BIO-41-07070mm
BIO-41-09090mm
BIO-41-110110mm
BIO-41-125125mm
BIO-41-150150mm
BIO-41-180180mm
BIO-41-185185mm
BIO-41-240240mm
BIO-41-270270mm

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