Qualitative Filters 551, black, round filters
Recommended for the detection of very fine traces of light-coloured particles and precipitates.
-Made of pure celluloses and with constriction of black additives
-White and light-coloured particles can be detected easily by the strong contrast to the black filter paper
-Weight 95 g/m2
-Thickness 0,2 mm
-Filtration speed acc. to Herzberg 850 s
Further sizes on request.

Diam. 240 mm