StablCal stabilized Formazin primary standards were developed for use in any turbidimeter. They require no preparation, dilution or special glassware. Select from individual standard solutions or calibration kits.
Items sold by USABlueBook are intended for use only by professionals in the water and wastewater treatment industry. Many items sold by USABlueBook require supplemental training, licenses or permits for proper use and may be harmful if not used properly.