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Fisherbrand™ Quantitative Grade Filter Paper Circles
Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels
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
| Disc | |
| 5 to 10 μm | |
| Widely used for general gravimetric analysis. Retains medium-sized particles such as lead sulfate, calcium oxalate and magnesium ammonium sulfate. Limited wet strength. | |
| Medium | |
| 11 cm |
| Alpha Cotton Cellulose | |
| Medium | |
| Q5 | |
| 100/box |
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