Hardened Quantitative Filter Paper - 0550-3200 - Grade 55, 32cm 18.50cm Grade 1765 is white and

Grade 1765 is white and Grade 1766 is tinted gray for improved visibility of fine root systems

and large seeds

Grade 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate

110 mm wide

7 cm size)

Hardened Quantitative Filter Paper - 0550-3200 - Grade 55, 32cm 18.50cm Grade 1765 is white andAhlstrom Munksj 55 15 m, Fast Speed This is a fast filtering grade for gravimetric analysis of coarse particles and gelatinous precipitates (i. e.: aluminum and zirconium hydroxides) in acid and alkali solutions. Grade 55 is also used in air and foodstuffs analysis and for chloride and phosphorous in cement, coal and coke.