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Filter paper circles, MN 1640 d, Quantitative, Slow (140 s), Smooth

MN 1640 d is a wet-strengthened, slow, ashless filter paper with very fine particle retention. Standard paper for critical gravimetric analysis of fine precipitates like barium sulfate or metastannic acid. The smooth surface allows fiber-free filtration, even for highly acidic and basic media.

Ash content < 0.01 %
Basis weight 85 g/m²
Color White
Diameter 55 mm, 70 mm, 90 mm, 110 mm, 125 mm, 150 mm, 185 mm, 240 mm, 270 mm, 320 mm
Filtration speed 140 s
Filtration speed description Slow
Format Filter paper circles
Grade MN 1640 d
Hazardous material No
Material Cellulose
Quality Quantitative
Retention capacity 2–4 µm
Surface Smooth
Thickness 0.16 mm / 6.3 mil
Wetstrength Strong