Whatman Qualitative Filter Papers, Grade 2 Circles, 42.5 mm, 100/pk

Description

Features of the Whatman Qualitative Filter Papers:

• Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed).
• More absorbent than Grade 1.
• In addition to general filtration in the 8 µm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials.
• Also used for monitoring specific contaminants in the atmosphere and in soil testing.
• Also available prepleated as Grade 2V.

Typical Properties:

• Description: Medium flow.
• Particle Retention in Liquid (µm): 8*.
• Filtration Speed: 240.
• Air Flow (s/100 ml/in2): 21.
• Typical Thickness: 190 µm.
• Basis weight (g/m2): 103.