¥310.28
目录价¥482.96节省 36%国内现货，预计发货时间2025年4月25日详情
推荐产品
物料
circles
cotton filters (high-quality cotton linters)
包装
pack of 100
制造商/商品名称
Whatman 1441-070
Whatman Article No. 28418015 (US reference)
参数
0.22 psi wet burst
54 sec/100 mL speed (Herzberg)
直径
70 mm
厚度
220 μm
灰分
≤0.007%
孔径
20-25 μm (Particle retention)
基本重量
85 g/m2
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1 of 4
此商品 | WHA1441060 | WHA1441090 | WHA1441042 |
|---|---|---|---|
| pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) |
| manufacturer/tradename Whatman 1441-070, Whatman Article No. 28418015 (US reference) | manufacturer/tradename Whatman 1441-060, Whatman Article No. 28418014 (US reference) | manufacturer/tradename Whatman 1441-090, Whatman Article No. 28418016 (US reference) | manufacturer/tradename Whatman 1441-042, Whatman Article No. 28418009 (US reference) |
| material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) |
| diam. 70 mm | diam. 60 mm | diam. 90 mm | diam. 42.5 mm |
| parameter 0.22 psi wet burst, 54 sec/100 mL speed (Herzberg) | parameter 0.22 psi wet burst, 54 sec/100 mL speed (Herzberg) | parameter 0.22 psi wet burst, 54 sec/100 mL speed (Herzberg) | parameter 0.22 psi wet burst, 54 sec/100 mL speed (Herzberg) |
| packaging pack of 100 | packaging pack of 100 | packaging pack of 100 | packaging pack of 100 |
一般描述
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.
特点和优势
- 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
其他说明
法律信息
法规信息
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