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Grade 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate
Like Grade 238
2000 x 110 mm 50 double pleats (1000/pk)
EPA method 1311
coal and coke
Glass Microfiber Filter Paper - 1310-0700 - Grade 131, 7cm 111 Grade 74 is also usedAhlstrom Munksj 131 1. 0 m, Medium Speed This standard grade found in many environmental applications offers slightly more retention than Grade 111 with slightly lower filtration speed and loading capacity. Grade 131 is recommended for the collection of suspended solids in potable water and in industrial wastes. In biochemical tests, Grade 131 is suited for cell harvesting, liquid scintillation counting and the analysis of carbohydrates.
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