Filter Paper Whatman™ 55 mm, 40 Grade, Medium Porosity, Circle Format, 210 µm Thickness, Medium Flow Rate, 8 µm Pore

Features

• For medium crystalline precipitates: calcium oxalate
• well-digested barium
• normal loading; limited wet strength High-purity filters for quantitative analysis Contain 0.007% maximum ash content Medium nominal particle retention rating of 8 µm Medium filtration speed (Herzberg 340 sec.) Suited for soil analysis
• when separating solid matter from aqueous extracts Quantitative determination of milk sediment Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry Analysis of constituent components in cements
• clays
• iron and steel products Collection of trace elements and radionuclides from the atmosphere