Ashless hard quantitative filter paper (Grade 541 70mm) 1 pack (100 sheets) 1541-070 1 pack (100 sheets)

Harder and more durable than regular ashless quantitative filter paper Acid hardened High wet strength and chemical resistance. Acid hardened to provide low ash levels. Durable surface makes it suitable for a wide range of precision analytical filtration applications. Rapid filtration of coarse particles and gelatinous precipitates from acid/alkali solutions in gravimetric analysis. Typical applications include the filtration of fiber from animal foods, gelatin from milk and cream, chlorides from cement, chlorides and phosphorus from coal and coke. Note: For research and testing purposes only. Features: High speed Particle retention capacity (liquid) (μm): 22* *Particle diameter at 98% retention efficiency. Filtration speed (Herzberg) (sec): 34 Ash content (%): <0.006 Ash content was measured by burning cellulose filter paper at 900°C in air. Thickness (μm): 155 Gravimetric weight (g/m2): 82 - Diameter (mm): 70