No. 40 Aperture 8.0um Dia. 47~185mm Whatman Ashless Quantitative Filter Paper
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No.40 Whatman Ashless Quantitative Filter Paper
Ashless filter paper for regular filtration, with medium flow rate and particle retention. Used for the specific gravity analysis of components in cement, soil, and metals.
It is used as the main filter paper to separate solid substances from aqueous phase extracts in soil analysis. In the quantitative analysis of milk components, it is used for clean filtration at the pure analysis level before atomic absorption spectroscopy.
It is also used for the high – purity collection of residual elements and radioactive nuclides in the atmosphere. Or as an impregnated filter paper to collect acidic and alkaline gases in the atmosphere, as well as for the determination of total arsenic content in food and feed, nitrate in forage grass, oxalic acid in canned vegetables, boron content in chemical fertilizers, etc.
| Number | Name | Specification |
| 1 | Diameter | 1440-047; 1440-055; 1440-070; 1440-090; 1440-110; 1440-125; 1440-150; 1440-185 |
| 2 | Shape | Round |
| 3 | Colour | White |
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