Filtry jakościowe Grade 604 1/2

Papiery jakościowe do osadów gruboziarnistych.
Grade 604 1/2 Qualitative Filter Papers for coarse precipitates.

• Maintains flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.
• Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed.
• Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.
• Increased total loading capacity as more filter area is available.
• The prepleating does not significantly affect any of the technical data, and the same figures may be used for the flat circles.

Cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters give improved flow rate and increased loading capacity compared to equivalent quadrant folded filters.
Grade Grade 604 
Grade Type Standard 
Particle Retention in Liquid Max. 25 µm
Typical Thickness 190 µm
Basis Weight 80 g/m2
Filtration Speed (Herzberg) 50 s
Material Cellulose 
Properties Fast 
Product Product Name Diameter
10312744 604 FF 125 mm 100/Pk 125 mm
10312745 604 FF 150 mm 100/Pk 150 mm
10312747 604 FF 185 mm 100/Pk 185 mm
10312751 604 FF 240 mm 100/Pk 240 mm
10312753 604 FF 320 mm 100/Pk 320 mm