Tungsten filament lamp light source and 90° scattering method, compliant with the U. S EPA 180. 1 method Comes with AMCO high-molecular polymer turbidity standard solutions, which are EPA approved primary standards that are safe, non-toxic and disposable, and have a one-year shelf life. TruRead mea...

Built with a tungsten filament lamp and uses the 90° scattering method, compliant with the U.S EPA 180.1 method Reading Error≤ ±2% of reading+ stray light in 0 to 1000 NTU (FNU) EPA-approved AMCO high-molecular polymer turbidity standard solutions (0, 20, 100, 400, 800 NTU), non-toxic and dispos...