推荐产品
材料
cellulose
sheets
特點
Grade 4
包裝
pack of 100
製造商／商標名
Whatman 1004-917
Whatman Article No. 28414029 (US reference)
參數
0.22 psi wet burst
37 sec/100 mL speed (Herzberg)
寬度 × 長度
460 mm × 570 mm
厚度
205 μm
灰分
≤0.06%
孔徑
20-25 μm (Particle retention)
基重
92 g/m2
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相关类别
一般說明
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 4: 20-25 μm, (very fast filter paper)
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
Grade 4: 20-25 μm, (very fast filter paper)
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
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
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