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Fisherbrand™ Quantitative Grade Filter Paper Circles

Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels

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Catalog No. 09-790C


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Description

Description

Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels

  • Made from high-quality alpha cotton cellulose, washed in hydrochloric acid and neutralized in an ultrapure water rinse
  • Leave no more than 0.01% ash when burned
  • Limited wet strength, suitable for gravity or low-suction filtration; should be used with care to avoid rupturing

Order Info

Packed 100 circles to a box and shrink-wrapped for purity and cleanliness.

Compliance

All papers listed in chart meet ASTM™ requirements for “ash content per circle.”

Specifications

Specifications

100/box
Alpha Cotton Cellulose
Coarse
20 to 25μmm
Fast
Q8
Circle
9cm
Suitable for coarse and gelatinous precipitates requiring thorough washing on paper. Used in metallurgical labs for filtering iron and aluminum hydroxides, metallic aerosols and for determining silica in steel. Also used in environmental monitoring. Limited wet strength.
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