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Whatman™ 1440-032 Grade 40 quantitative filter paper, ashless for pollution analysis, 32 mm circle (100/Pk)
Category
Brand
Stock Code
LB.WH.1440-032
Kısa Bilgi
Whatman™ No. 40 Orta hız ve tutma özelliğine sahip, külsüz, klasik genel amaçlı filtre kağıdı.
| Whatman™ 1440-032 Grade 40 quantitative filter paper, ashless for pollution analysis, 32 mm circle (100/Pk) |
| Whatman™ 1440-032 Grade 40 quantitative filter paper, ashless for pollution analysis, 32 mm circle (100/Pk) Whatman™ Grade 40 high-purity filters from Cytiva are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications. - High-purity filters contain 0.007% maximum ash content - Medium nominal particle retention rating of 8 µm - Medium filtration speed (Herzberg 340 s) - Particularly useful for gravimetric analysis Applications for high-purity Grade 40 filters High-purity filters support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples. Cytiva's high-purity Whatman™ Grade 40 ashless paper is suited to: - 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 |
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Properties
Grade Grade 40
Format Circles Type Ashless Material High-quality cotton linters Nominal Ash Content 0.007% Nominal air flow rate 21 s/100 ml/in² Nominal basis weight 95 g/m² Nominal thickness 210 µm Typical Particle Retention in Liquid 8 µm Typical water flow rate at 45 psi (3.1 bar) 25 ml/min |
