Cytiva Filter Circles, Quantitative, Grade 41 (Ashless)
Cytiva Filter Circles, Quantitative, Grade 41 (Ashless)


The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e. g. iron or aluminium hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates.
Technical Data:
Particle retention:

20 to 25 µm
Filtration speed:54 s
Weight:85 g / m2
Thickness:0.22 mm
Ash:0.007 %
Filter type:filter circle
Filtration time:54.00 [s]
TypeHöhe
mm
Order No.PU Manuf. Prod. No. 
Grade 4142.505421915100-1441-042 
Grade 4147.005421916100-1441-047 
Grade 4150.005428636100-1441-050 
Grade 4155.005421917100-1441-055 
Grade 4170.005421918100-1441-070 
Grade 4190.005421919100+1441-090 
Grade 41110.005421920100+1441-110 
Grade 41125.005421921100+1441-125 
Grade 41150.005421922100-1441-150 
Grade 41185.005421923100-1441-185 
Grade 41240.005421924100-1441-240