Quantitative Filter Paper
Fisherbrand™ Quantitative Grade Filter Paper Circles
Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels
Labconco™ Fast-Freeze™ Flask Filter Paper
Fits into top of flask to prevent partial loss of product during freeze drying.
Whatman™ Grade 50 Quantitative Filter Paper
Enables strong retention for very fine crystalline precipitates. Whatman™ Grade 50 Quantitative Filter Paper withstands shredding, wet handling, and precipitate removal by scraping.
Whatman™ Grade 40 Quantitative Filter Paper
Supports accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis. Whatman™ Grade 40 Quantitative Filter Paper are useful where ash content might affect weight measurements of combusted samples.
Whatman™ Grade 41 Quantitative Filter Paper
Serves as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Grade 41 Quantitative Filter Paper is also used in preparing samples for metal analysis after nitric acid digestion.
Whatman™ Quantitative Filter Papers - Grade 40
Separates solid matter from aqueous extracts in soil analysis and collects atmospheric trace elements and radionuclides. Whatman™ Quantitative Filter Papers – Grade 40 also filter numerous components in cements, clays, iron, and steel products.
Whatman™ Grade 589/2 Quantitative Filter Paper
Retains medium fine precipitates using material with virtually no ash content. Whatman™ Grade 589/2 Quantitative Filter Paper is used when medium fine precipitates are being collected and papers must be ashed to support analysis.
Whatman™ Whatman™ Quantitative Grade Papers
Used for critical analytical filtrations. GE Healthcare Whatman™ Quantitative Grade Papers are acid hardened, which reduces ash to an extremely low level.
Whatman™ Grade 54 Quantitative Filter Paper
Supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet. Whatman™ Grade 54 Quantitative Filter Paper has a hard, smooth surface to sustain vacuum and suction filtration.
Whatman™ Grade 52 Quantitative Filter Paper
Enables efficient precipitate recovery with acid-hardened surface and low ash content. Whatman™ Grade 52 Quantitative Filter Paper prevents fiber shredding during vacuum filtration or precipitate collection.
Whatman™ Grade 589/1 Quantitative Filter Paper Circles
Filters course precipitates using material with virtually no ash content. Whatman™ Grade 589/1 Quantitatve FIlter Paper Circles support cement fineness measurement or determination of the ash content in foodstuffs.
Whatman™ Quantitative Filter Papers - Grade 41
Contains extremely low ash content at 0.007%. Whatman™ Quantitative Filter Papers – Grade 41 aid analytical procedures involving coarse particles or gelatinous precipitates.
Whatman™ Grade 43 Quantitative Filter Paper
Contains very low ash content appropriate for gravimetric analyses requiring sample combustion. Whatman™ Grade 43 Quantitative Filter Paper can be ashed during gravimetric analysis without contributing substantially to the measured weight.
Whatman™ Grade 44 Quantitative Filter Paper
Reduces overall ash content and the amount of time required for filtration. Whatman™ Grade 44 Quantitative Filter Paper provides faster gravimetric analysis with filter thinner material.