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This grade uses the same acid-treated glass microfiber media as Grade 193
42 mm - 150 mm / 30 min
Grade 131 is suited for cell harvesting
This medium thick paper is recommended for general chromatography applications
Glass Microfiber Filter Paper - 1690-0425 - Grade 169, 4.25cm 10.50cm This grade uses the sameAhlstrom Munksj 169 1. 0 m, Fast Speed This glass microfiber grade is a smooth surface, binder free filter with unique high temperature resistance. It offers fine particle retention and product stability to over 500 degrees Centigrade. The temperature resistance makes Grade 169 well suited for suspended solids determination, volatile solids testing, air pollution testing, and related EPA and ASTM protocols. (100 circles box) Grade 169 for STM2540 E
