Dye Tracer Cake Dye Type Water Tracing Dye Color Orange Form Wax Container Size 1.25 oz Coverage 180 gal (Strong Visual) 1 800 gal (Light Visual) Dissolution Time 45 min Detectability less than 100 ppb NSF Certified Yes Fluorescent Yes Application Examine Water Movement Current Flow (In springs streams lakes ocean etc.) Flow Mapping Tracing and Time Studies Pollution Studies (Discharge Rate of Flow Mixing Diffusion and Dispersion Circulation) Standards ANSI NSF