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Whatman™ Qualitative Filter Paper: Grade 1 Sheets

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Sheets are widely used standard grade filter paper for routine applications with medium retention and flow rates.

$370.10 - $1,663.52


Grade 1
Material Cellulose
Flow Rate Medium
Pore Size (Metric) 11μm
Thickness (Metric) 180μm
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Products ${productFamilyLength}
Catalog Number Mfr. No. Dimensions (L x W) Quantity Price Quantity  
Catalog Number Mfr. No. Dimensions (L x W) Quantity Price Quantity  
09-806A Accessories Whatman™
570 x 460mm 100Pack Pack of 100 Each for $370.10
09-805-1F Accessories Whatman™
570 x 460mm 500Pack Pack of 500 Each for $1,663.52



These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids. 
  • Particle Retention: >11μm
  • Porosity: medium
  • Filtration speed: ASTM™, 40 sec.; Herzberg, 150 sec.
  • Surface: smooth
  • 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


Description & Specifications