Glass Microfiber Filter Paper - 1310-0700 - Grade 131, 7cm 111 EPA method 1311

EPA method 1311

2000 x 110 mm 50 double pleats (1000/pk)

This high absorbency grade is twice as thick as Grade 642 with similar particle retention

Grade 151 is recommended for filtering fine precipitated proteins

Glass Microfiber Filter Paper - 1310-0700 - Grade 131, 7cm 111 EPA method 1311Ahlstrom 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.