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Grade 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate
zinc and ammonium hydroxides
This grade uses the same acid-treated glass microfiber media as Grade 193
The filter media is thoroughly rinsed in a multi-stage process using copious amounts of high-purity deionized water
It is recommended for fast analysis procedures for unstable precipitates such as silicon
Quantitative Glass Microfiber Filter Paper - 0260-1420 - Grade 26, 14.2cm 4.70cm Grade 74 is also usedAhlstrom Munksj 26 This grade uses the same acid treated glass microfiber media as Grade 193, which is then acid washed using IN HNO3, as described in EPA Method 1311. The filter media is thoroughly rinsed in a multi stage process using copious amounts of high purity deionized water. Prewashing with acid further reduces the content of metals to exceptionally low levels. This eliminates the need to acid wash the filters in your lab, saving valuable
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