Quantitative (ashless) paper filters are made from 100 % cotton linters and are free from impurities since the paper is acid washed and cleaned with ultra pure water. The ash content is 0.008 %. Available as sheets and plain circles.
Metal content in Advantec filters, µg/g
Filters are available in many different standard sizes.
Special cuts available on request - Just send an inquiry
Comparison table with different quantitative filter papers.