Grade 113 Qualitative Paper 49x100CM 1113-991

• Wet strengthened grade qualitative filter paper, Grade 113; high wet strength due to the addition of a small quantity of chemically stable resin
• Sheet dimensions: 490 x 1000mm
• Flow rate: fast; surface: creped; particle retention: 30µm
• Normal qualitative applications will not introduce any significant impurities into the filtrate; resins do contain Nitrogen so these grades should not be used in Kjeldahl estimations, etc.
• Ideal for use with coarse or gelatinous precipitates; fastest flow rate of the qualitative grades; thickest filter paper in the qualitative range

This wet strengthened grade qualitative filter paper, Grade 113, is an extremely strong filter paper. It has a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain Nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms. Grade 113 (30µm) has an ultra-high loading capacity with a particle retention making it ideal for use with coarse or gelatinous precipitates. Fastest flow rate of the qualitative grades. Creped surface. Thickest filter paper in the qualitative range. This filter is also available in the FilterCup, a convenient, disposable 70mm filter funnel with a 250mL capacity, molded from polypropylene with an integral, heat bonded filter. Also available as Grade 113V. Sheet Dimensions: 490 x 1000mm. Flow Rate: Fast. Surface: Creped. Particle Retention: 30µm. Filtration Speed: ~ 28 Herzberg (s). Air Flow: 1.3s/100ml/in². Typical Thickness: 420µm. Basis Weight: 125g/m².