Quick view Whatman Whatman Qualitative Filter Papers, Grade 2 Circles, 42.5 mm, 100/pk Retail Price: Was: Your Price: $25.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 5 Circles, 70 mm, 100/pk Retail Price: Was: Your Price: $29.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 1 circles, 55 mm, 100/pk Retail Price: Was: Your Price: $25.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 2 Circles, 55 mm, 100/pk Retail Price: Was: Your Price: $28.95
Quick view Whatman Whatman Qualitative Filter Paper: Grade 4 Circles Retail Price: Was: Your Price: $45.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 2 Circles, 42.5 mm, 100/pk Retail Price: Was: Your Price: $25.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 5 Circles, 70 mm, 100/pk Retail Price: Was: Your Price: $29.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 1 circles, 55 mm, 100/pk Retail Price: Was: Your Price: $25.95
Quick view Whatman Whatman Qualitative Filter Papers, Grade 2 Circles, 55 mm, 100/pk Retail Price: Was: Your Price: $28.95
Quick view Whatman Whatman Qualitative Filter Paper: Grade 4 Circles Retail Price: Was: Your Price: $45.95
Description Features of the Whatman Qualitative Filter Papers: Used in air-pollution monitoring and routine cleanup of biological fluids. Retains coarse particles, gelatinous precipitates. Particle Retention: > 20-25µm. Porosity: Coarse. Filtration speed: ASTM*, 12 sec.; Herzberg, 37 sec. Surface: smooth.