Ahlstrom 642 Filter Paper - FILTER, G-642, QUALITATIVE, 4.25CM DIA - 6420-0425

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Product Information: FILTER, G-642, QUALITATIVE, 4.25CM DIA

Manufacturer Part # 6420-0425

Description

• Medium speed, 2 micrometers
• Finer particle retention and higher absorption than Ahlstrom 601 but with slightly lower filtration speed
• Used in general laboratory applications to retain particles above 2 micrometers in size
• Also used in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoring specific contaminants and in the filtration oforganic and sulfide precipitates
• Recommended for use in analytical methods that determine or identify particulate constituents of a mixture irrespective of the amount present