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They can also be used for testing acidic gases which are not compatible with micro-glass fiber thimbles
Grade 151 is recommended for use in TCLP procedure as described in test methods for evaluating solid wastes
binder-free glass microfiber paper provides the consistency and precision required for accurate testing by Quality Control Laboratories
Ahlstrom-Munksjö 74
Grade 111 is used in general laboratory filtration including atmospheric and water pollution monitoring such as intake controls
Glass Microfiber Filter Paper - 1690-1100 - Grade 169, 11cm 52cm x 52cm They can also be usedAhlstrom 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
