Whatman™ Filter Paper 150 mm, 1 Grade, >11 µm Particle Retention, Circle Format, Medium Porosity, 180 µm Thickness, Smooth Surface

Features

• These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids
• Filtration speed: ASTM™, 40 sec., Herzberg, 150 sec
• Separates precipitates such as lead sulfate, calcium oxalate (hot) and calcium carbonate
• Used for soil analysis and seed testing procedures in the agricultural industry
• Used to separate solid foodstuffs from associated liquid or extract liquid in the food industry
• Atmospheric dust is collected from airflow and the stain-intensity measured
• Impregnated with a chromogenic reagent and color formation quantified by optical reflectance for gas detection