Ahlstrom Filtration

Quantitative Filter Paper, 12.5 cm dia, Cotton, Grade 94, Ashless Grade Type, Circle Format, 0.19 mm Thickness, 1.5 µm Particle Retention in Liquid, 94.8 g/m2 Nominal Basis Weight, 1724 sec/100 ml (Herzberg) Filtration Speed

Glass Microfiber Filter, 4.7 cm dia, Brilliant White, Grade 111, Standard Grade Type, Circle Format, 0.279 mm Thickness, 1.2 µm Particle Retention in Liquid, 56 g/m2 Nominal Basis Weight, 53 sec/100 ml (Herzberg) Filtration Speed

Chromatography Blotting Paper, 11 x 14 cm, Cotton, Grade 238, Sheet Format, 0.34 mm Thickness, Medium Thick Type, 183 g/m2 Nominal Basis Weight, 140 mm/30 min Absorption Speed, Excellent Wet-Strength and Handling, Uniform Absorption

Sugar Testing Filter Paper, 11 cm dia, Black, Cotton, Grade 8613, Sugar Testing Grade Type, Circle Format, 4 µm Particle Retention in Liquid, 118 sec/100 ml (Herzberg) Filtration Speed, Medium Loading Capacity, 0.06% Low Ash Content

Quantitative Filter Paper, 12.5 cm dia, Cotton, Grade 74, Ashless Grade Type, Circle Format, 0.2 mm Thickness, 2 µm Particle Retention in Liquid, 95 g/m2 Nominal Basis Weight, 229 sec/100 ml (Herzberg) Filtration Speed

Qualitative Filter Paper, 24 cm dia, Cotton, Grade 505, Standard Grade Type, Pleated Format, 28 µm Particle Retention in Liquid, 26 sec/100 ml (Herzberg) Filtration Speed, Medium Loading Capacity, 0.06% Low Ash Content

Glass Microfiber Filter, 2.4 cm dia, Brilliant White, Grade 161, Standard Grade Type, Circle Format, 0.317 mm Thickness, 1.1 µm Particle Retention in Liquid, 68 g/m2 Nominal Basis Weight, 67 sec/100 ml (Herzberg) Filtration Speed

Quantitative Filter Paper, 11 cm dia, Cotton, Grade 54, Ashless Grade Type, Circle Format, 0.241 mm Thickness, 10 µm Particle Retention in Liquid, 87.8 g/m2 Nominal Basis Weight, 34 sec/100 ml (Herzberg) Filtration Speed

Qualitative Filter Paper, 12.5 cm dia, White, Cellulose, Grade 513, Standard Grade Type, Pleated Format, 0.172 mm Thickness, 6 µm Particle Retention in Liquid, 70.2 g/m2 Nominal Basis Weight, 114 sec/100 ml (Herzberg) Filtration Speed

Qualitative Filter Paper, 12.5 cm dia, White, Cellulose, Grade 617, Standard, Non Wet-strengthened Grade Type, Circle Format, 0.52 mm Thickness, 35 µm Particle Retention in Liquid, 122.9 g/m2 Nominal Basis Weight, Fast Flow, Coarse Porosity

Qualitative Filter Paper, 12.5 cm dia, Cotton, Grade 517, Standard Grade Type, Pleated Format, 35 µm Particle Retention in Liquid, 19 sec/100 ml (Herzberg) Filtration Speed, Very High Loading Capacity, 0.06% Low Ash Content

Qualitative Filter Paper, 11 cm dia, White, Cotton, Grade 631, Standard, Non Wet-strengthened Grade Type, Circle Format, 0.235 mm Thickness, 10 µm Particle Retention in Liquid, 87.8 g/m2 Nominal Basis Weight, Medium Flow, Coarse Porosity