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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
which requires speedy filtration
Ahlstrom-Munksjö 74
It is used for gravimetric analysis of numerous components (e
Glass Microfiber Filter Paper - 1610-0280 - Grade 161, 2.80cm 222 Grade 141 is particularly recommendedAhlstrom 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
