跳转至内容
Merck

WHA1443090

Whatman® quantitative filter paper, ashless, Grade 43

circles, diam. 90 mm, pack of 100

别名:

Z740519

登录查看公司和协议定价


About This Item

分類程式碼代碼:
41104900
NACRES:
NB.24

材料

circles
cotton filters (high-quality cotton linters)

包裝

pack of 100

製造商/商標名

Whatman 1443-090
Whatman Article No. 28418057 (US reference)

參數

0.6 psi wet burst
155 sec/100 mL speed (Herzberg)

直徑

90 mm

厚度

220 μm

灰分

≤0.007%

孔徑

16 μm (Particle retention)

基重

95 g/m2

正在寻找类似产品? 访问 产品对比指南

相关类别

一般說明

Whatman quantitative filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet your specific needs.

Ashless:
0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades - very pure filters suitable for a wide range of critical analytical filtration procedures.

Hardened low ash:
0.015% ash maximum - treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. These filters are particularly suitable for Büchner filtration where the tough smooth surface of the filter makes it easy to recover precipitates.

Hardened ashless:
0.006% ash maximum - acid hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures.

Grade 43: 16 μm (medium to fast filter paper)
Intermediate in retention between Grades 40 and 41, and twice as fast as Grade 40. Typical applications include foodstuffs analysis; soil analysis; particle collection in air pollution monitoring for subsequent analysis by XRF techniques; and inorganic analysis in the construction, mining and steel industries.

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

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ (Lot或Batch)字后找到。

已有该产品?

在文件库中查找您最近购买产品的文档。

访问文档库

我们的科学家团队拥有各种研究领域经验,包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门