£41.05
Inc. VAT
£34.21
Ex. VAT
If you have an account:
Description
Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.
Key Information:
- High-purity filters for quantitative analysis
- Contain 0.007% maximum ash content
- Medium nominal particle retention rating of 8μm
- Medium filtration speed (Herzberg 340 sec.)
Suited for
- Soil analysis, when separating solid matter from aqueous extracts
- Quantitative determination of milk sediment
- Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
- Analysis of constituent components in cements, clays, iron, and steel products
- Collection of trace elements and radionuclides from the atmosphere
| 21 s/100 mL/in2 | |
| Ashless | |
| Cotton Linters | |
| 8 μm | |
| Medium | |
| Grade 40 | |
| 100 Pk. | |
| Quantitative Filter Paper | |
| 32 mm |
| Grade 40 Ashless Filter Paper for Pollution Analysis, 32 mm circle (100 pcs) | |
| Disc | |
| 8 μm | |
| ASTM, 75 seconds; Herzberg, 340 seconds | |
| Designed for gravimetric analysis and the preparation of samples for instrumental analysis.Gravimetric analysis for numerous components in cements, clays, iron, and steel products.As a primary filter for separating solid matter from aqueous extracts in | |
| Medium | |
| 210 μm | |
| 1.25 in. |
Related Products
Related Products
Filter Papers 90mm Whatman Grade 1 pk 100
£10.59
These cellulose filters are used in qualitative analytical techniques to determine and identify materials.
90mm diameter circle sheets. The most widely used filter paper for routine applications with...
FIL2031
Filter Papers 70mm Whatman Grade 1 Pk 100
£10.06
Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard...
FIL2029
Filter Papers 240mm Whatman Grade 54 Pk 100
£233.75
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...
10507111
Filter Papers 185mm Whatman Grade 1 Pk 100
£29.20
These cellulose filters are used in qualitative analytical techniques to determine and identify materials
. Prepleated qualitative filters are also available, which give improved flow rate and...
FIL2035
Filter Papers 240mm Whatman Grade 5 Pk 100
£65.16
Whatman grade 5 cellulose filters are used in qualitative analytical techniques to determine and identify materials.
FIL2107
