TLG® Ashless Quantitative Filter Papers - No.41

TLG® Ashless Quantitative Filter Papers No.41 have very fast filtration speed and are typically used in air pollution analysis, soil pollution analysis, metals analysis after nitric acid digestion, gravimetric analysis, and preparation of samples for instrumental analysis. SPECIFICATIONS  Material: High Quality Cotton Linters  Porosity: Coarse  Particle Retention in Liquid: 20-25µm Herzberg Filtration Speed: 68sec/100mL (or ASTM: 12sec)  Nominal Thickness: 185 ± 10µm  Nominal Weight: 92g/m²  Nominal Ash Content : 0.007% Package Size: 100 Pieces