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This is an extremely fine retention filter for critical gravimetric analysis and metal determination of very fine particles such as barium and lead sulfates
Grade 121 is recommended for the clarification of liquid suspensions loaded with fine particulates
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
Suitable for heating up to temperatures less than 500° C
Glass Microfiber Filter Paper - 1610-0550 - Grade 161, 5.50cm 33cm x 43cm This is an extremely fineAhlstrom 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
