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Grade 111 is also recommended for filtering solvents in a high-resolution laboratory
The filter media is thoroughly rinsed in a multi-stage process using copious amounts of high-purity deionized water
Ahlstrom-Munksjö 161
Quartz meets the highest purity requirements due to the lowest possible heavy metal content
and related EPA and ASTM protocols
Glass Microfiber Filter Paper (TCLP) - 1930-0470 - Grade 193, 4.70cm 54 Grade 111 is also recommendedAhlstrom Munksj 193 This grade has similar performance properties to Grade 151 and is made with acid treated borosilicate glass microfibers with inherently low levels of barium and zinc. The filter media contains no binders or other additives that may cause interference with samples. The filters resist acids and bases and have a nominal particle retention of 0. 7 m.
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