ANSI/AWWA F101, ntact-Molded, Fiberglass-Reinforced Plastic Wash-Water Troughs and Launders ANSI/AWWA F102, Match-Die-Molded, Fiberglass-Reinforced Plastic Weir Plates, Scum Baffles, and Mounting Brackets ANSI/AWWA B451, Poly (Diallyldimethylammonium Chloride) ANSI/AWWA B452, EPI-DMA Polyamines ANSI/AWWA B453, Polyacrylamide