Whatman hardened ashless quantitative filter papers are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. They are suitable for a wide range of critical filtration procedures.
High retention of fine precipitates in applications such as metal determinations and hydroxide collection
Collection of trace elements and radionuclides from the atmosphere
Nominal particle retention rating of 2.7 µm
Herzberg filtration speed of 2510 s
Extremely low ash content (0.006% ash maximum)
Gravimetric metal determinations. Retains fine particles under demanding conditions. Normal loading; high wet strength.
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