Intended for structured formulation workflows, the Fillter Circles, Qualitative, Grade 541, Ø 70 Mm are designed for fast filtration of coarse particles and gelatinous precipitates in acidic and alkaline solutions. These filter circles, manufactured by Whatman, offer a basis weight of 82 g/m² and a typical thickness of 155 µm. With a filtration time of 3 seconds and a filtration speed of 34 seconds they provide efficient separation in various applications such as gravimetric analysis, fibre in animal foodstuffs, gelatine in milk and cream, chloride in cement, and chloride and phosphorus in coal and coke. The ash content is less than 0.006%, ensuring minimal interference with the sample being filtered.

• Category: Quantitative Filter Papers
• UNSPSC 13.5: 41104929
• Typical thickness: 155 µm
• Filtration speed Herzberg: 34 s
• Diameter [mm]: 70
• Filtration time [s]: 3
• Type: Sorte 541
• Ash content: < 0.006 %
• Filter type: filter circle
• Description: fast
• Particle retention in liquid: 20 to 25 µm
• Basis weight: 82 g / m2
• Brand: Whatman