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EPA method 1311
Ahlstrom-Munksjö 74
which is then acid-washed using IN HNO3
Ahlstrom-Munksjö 141
Fast Speed
Glass Microfiber Filter Paper - 1610-0900 - Grade 161, 9cm 9cm EPA method 1311Ahlstrom Munksj 161 1. 1 m, Medium Speed This popular grade offers finer particle retention and higher flow rate than traditional analytical filter papers. Grade 161 is used in general laboratory applications, cell harvesting, liquid scintillation counting, and in the monitoring of air and water pollution. Grade 161 is generally recommended for water pollution monitoring techniques for total suspended solids. (100 circles box) Grade 161 for STM2540 D
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