Ahlstrom Quantitative Filter Paper (Hardened Ashless)

Ahlstrom manufactures a series of extremely high purity acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure reverse-osmosis water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter. Ahlstrom Laboratory Filter Catalog About Ahlstrom Filter Grades which are pdf,

Ahlstrom Quantitative Filter Paper Grade 55 (Hardened Ashless)

Ahlstrom Quantitative Filter Paper Grade 75 (Hardened Ashless)

Ahlstrom Quantitative Filter Paper Grade 95 (Hardened Ashless)