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Whatman™ 1441-070 Grade 41 quantitative filter paper, ashless, 70 mm circle (100/Pk)
Category
Brand
Stock Code
LB.WH.1441.070
Kısa Bilgi
Whatman™ No. 41 Kantitatif Filtre Kağıdı. Toprak ve havanın nicel analizi için oldukça uygun olan gravimetrik filtre.
| Whatman™ 1441-070 Grade 41 quantitative filter paper, ashless, 70 mm circle (100/Pk) |
| Whatman™ 1441-070 Grade 41 quantitative filter paper, ashless, 70 mm circle (100/Pk) Cytiva's Whatman™ Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman™ ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air. - Extremely low ash content (0.007% ash maximum) 20 µm nominal particle retention rating - Fast filtration speed (Herzberg 54 s) - Commonly used for routine air pollution analysis and soil pollution analysis Grade 41 filters are also commonly used in preparing solid environmental samples (e.g., soils, sludges) for metals analysis after nitric acid digestion. They are available in a convenient, disposable, 47 mm filter funnel with a 250 ml capacity. The 47 mm diameter filter can be easily removed for further analysis or culturing. |
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Properties
Grade Grade 41
Format Circles Type Ashless Material High-quality cotton linters Nominal Ash Content 0.007% Nominal air flow rate 4 s/100 ml/in² Nominal basis weight 85 g/m² Nominal thickness 210 µm Alpha Cellulose Content Min. ≥98% Typical Particle Retention in Liquid 20 µm Typical water flow rate at 45 psi (3.1 bar) 254 ml/min |
