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It is recommended for fast analysis procedures for unstable precipitates such as silicon
Grade 141 is particularly recommended for pre-filtration of membrane filters and is also used in combination with Grade 121 as a highly efficient protective and retentive grade density pre-filter for membrane filters
This grade offers better filtration speed and a higher loading capacity than an analytical filter paper of similar particle retention
Suitable for heating up to temperatures less than 500° C
Grade 161 for STM2540-D - Total Suspended Solids
Quantitative Glass Microfiber Filter Paper - 0260-1250 - Grade 26, 12.5cm 94 It is recommended for fastAhlstrom 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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