Get current pricing for Merck, Merck-14203-ID Lot Of (3) Boxes Merck Aquaquant Colormetric Silicate Test. Test Range Is 0.01-25.0 Mg/l Si. Test Range Is 0.02-53.0 Mg/l Sio2. There Are 150 . Product Category: Lab Equipment, Sub Category: Supplies And Labware: