Superior Grade Filters for a Variety of Biological and Environmental Methods. Type A/E meets the requirements for suspended solids testing, as described in Standard Methods for the Examination of Water and Wastewater, current edition. Reduces filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions. Extends filter life and reduces final filter changes with high capacity prefilters. Eliminates sample contamination. Binder-free borosilicate glass fiber has no added extractables.
