Qualitative Laboratory Filtration Filter Paper Grade: BIO-2

Grade: BIO-2
Equivalent to Whatman Grade 2
Filtration Speed: Medium
Product Appearance: Smooth
Ash Content(%): <0.06
Particle Retention: 8μm
Basis Weight(g/m²): 103
Wet Burst(psi): 0.7
Thickness(mm): 190

Availability: In Stock


Description of Ordinary Filter Paper Grade 2

Hawach BIO-2 qualitative lab filtration paper is Whatman Grade 2 equivalent quality with competitive price in the market, which has a moderate retention rate and flow rate (8μm). Hawach filter paper was manufactured to ISO 9001 environmental management standards and all passed the CE certificates.

In addition to the commonly used disc filter paper, Hawach also produces filter paper roll. Same as qualitative filter paper Grade 113,
filter paper Grade 2 covers a wide range of laboratory applications and is frequently used for clarifying liquids. Hawach also provides pre-folded qualitative filter paper. Compared with ordinary filter paper, folding can increase the flow rate and load of the filter paper.



  • Lab filtration paper BIO-2 is equivalent to Whatman Grade 2;
  • This filter paper has a broad pH tolerance and is thermostable up to 120°C;
  • Disc, filter paper roll, square type;
  • Pore size 8um with medium retention and flow rate;
  • Disc (round) in 70, 90, 110, 125, 150, 180, 185, 240, and 270mm diameter or OEM size is available;
  • Sheet (square L*W) in 41*45, 60*60, 65*65, 80*80, 85*85, 90*90 diameter or OEM size is available.

Advantages of Grade 2 Roll and Disc Filter Paper

  • Filtration paper manufactured from alpha-cellulose and high-quality cotton linters;
  • Lab filtration paper easy to use: pre-cut filter paper for use directly;
  • Whatman filter paper equivalent quality with a competitive price;
  • Qualitative filter paper superior work under high pressure or vacuum;
  • All round, square, and roll types laboratory filter, OEM products are available;
  • Lowest ashless content: < 0.1%;
  • High purity and consistent performance;
  • Roll and disc available.


  • Laboratory filter is suitable for soil testing;
  • Chromic acid mist collection and monitoring of plating bath around;
  • Textile dye quality inspection;
  • Monitoring airborne pollutants;
  • Conservation of soil nutrients in a plant experiment;
  • Used in the food industry to separate solid foods from related liquids or extract liquids;
  • Widely used in education for teaching simple qualitative analytical separations.

Compared with filter paper grade 1, filtration filter paper bio 2 has a slightly higher retention rate and load capacity, and the filtration time increases accordingly (such as slower filtration speed). In addition to the ability to retain small particles of about 8μm, the strong adsorption capacity also has its advantages. For example, laboratory filters can be used as plant growth test paper, and the paper can retain nutrients in the soil to continuously provide nutrients for plant growth. Filter paper roll is also used in air and soil tests to monitor specific pollutants.

Grade Comparison

Hawach Scientific Co., LtdWhatmanAdvantecMunktellAhlstromMacherey NagelSartorius
BIO-2Grade 2232No.2/150642616292a

Guide for Filter Paper


Technical Data

Ash Content
Basis Weight
Wet Burst
(mm H2O)
BIO-28μmSmoothMedium<0.184> 140

Ordering Information

Item #DescriptionPore SizeDiameterPackage
BIO-2-055Grade 2, medium flow rate8 μm55mm100pcs/pk
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