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> Filter paper, circles, whatman grade 4, 125MM 100CT
Filter paper, circles, whatman grade 4, 125MM 100CT
A sealed box of Whatman filter circles. Qualitative grade. Whatman Grade 4 allows for extremely fast filtering, with excellent retention, of coarse particles and gelatinous precipitates. Used in routine clean-up of biological fluids or organic extracts. With air pollution monitoring, may be used when high flow rates are required and the collection of fine particles is not critical.
Filtration speed: Herzberg, 37sec/100mL
