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WHA1004648

Whatman® qualitative filter paper, Grade 4

roll, W × L 38 mm × 114 mm, pack of 1

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别名:
Z752355
UNSPSC代码:
41104900
NACRES:
NB.24

物料

cellulose
roll

特点

Grade 4

包装

pack of 1

制造商/商品名称

Whatman 1004-648
Whatman Article No. 28414023 (US reference)

参数

0.22 psi wet burst
37 sec/100 mL speed (Herzberg)

宽度 × 长度

38 mm × 114 mm

厚度

205 μm

灰分

≤0.06%

孔径

20-25 μm (Particle retention)

基本重量

92 g/m2

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相关类别

一般描述

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.

其他说明

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

法律信息

Whatman is a registered trademark of Cytiva

法规信息

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