WHA1441090

Whatman^® quantitative filter paper, ashless, Grade 41

circles, diam. 90 mm, pack of 100

• 别名: Z241377
• 分類程式碼代碼: 41104900
• NACRES: NB.24

属性

• 材料: circles ; cotton filters (high-quality cotton linters)
• 包裝: pack of 100
• 製造商／商標名: Whatman 1441-090; Whatman Article No. 28418016 (US reference)
• 參數: 0.22 psi wet burst; 54 sec/100 mL speed (Herzberg)
• 直徑: 90 mm
• 厚度: 220 μm
• 灰分: ≤0.007%
• 孔徑: 20-25 μm (Particle retention)
• 基重: 85 g/m²

说明

一般說明

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.

Fast ashless paper for pollution analysis

Whatman Grade 41 filters from Cytiva′s business are suitable for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates.

Grade 41 filters are also commonly used in preparing solid environmental samples (e.g., soils, sludges) for metals analysis after nitric acid digestion. Grade 41 is 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.

特點和優勢

• 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

其他說明

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

法律資訊

Whatman is a registered trademark of Cytiva