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Filter Papers

Filter Papers

Qualitative Filter Papers are pure filter papers made of almost 100% alpha cellulose and are primarely used for clearing and retention of particles for further analysis of the filtrate.
Quantitative Filter Papers are made of 100% alpha cellulose, double acid washed and neutralized. These filters have a very low content of ash, below 0.01%. Used for gravimetric analysis and prior to analysis with instruments.
Technical Filter Papers made of cotton cellulose or chemical treated pulp or a mix of both. Used for less critical analysis and in the industry.