Quantitative Filter Paper - 0540-2700 - Grade 54, 27cm 161 Grade 161 is generally recommended

Grade 161 is generally recommended for water pollution monitoring techniques for total suspended solids

Grade 54 is also used in air pollution testing to determine gaseous compounds

particle testing

This popular grade offers finer particle retention and higher flow rate than traditional analytical filter papers

Quantitative Filter Paper - 0540-2700 - Grade 54, 27cm 161 Grade 161 is generally recommendedAhlstrom Munksj 54 10 m, Fast Speed This is a fast filtering grade for rapid filtration of coarse particles and gelatinous precipitates such as iron, zirconium and aluminum hydroxides, and cobalt sulfide. Grade 54 is also used in air pollution testing to determine gaseous compounds. It is recommended for fast analysis procedures for unstable precipitates such as silicon, which requires speedy filtration. Call for pricing if ordering larger quantities