Whatman Grade 2 filter paper is 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...
Whatman Grade 2 filter paper is slightly more retentive than Grade 1 with a corresponding...