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Whatman™ Qualitative Filter Paper: Grade 1 Circles

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

Manufacturer:  Whatman™ 1001185

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Catalog No. 09-805H


 

Specifications

Description

Paper, Filter; GE Whatman; Qualitative; Plain circle and sheets; Particle Retention: greater than11μm; Filtration speed: 150 herzberg; Air flow: 10.5s/100mL/in2; Medium porosity; Smooth surface; Grade 1; Type: circle; Dia: 185mm

 

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

Specifications

100/pk.
1
For clarifying liquids. Used in qualitative analytical separations of precipitates such as lead sulphate; air pollution monitoring, gas detection, soil analysis
Medium
Circle
185mm
Cellulose
180μm
>11μm
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