Delivery: The low range Ozone Vacu-vials® test kit (Indigo) comes in a cardboard box and contains everything needed to perform 30 tests: thirty Vacu-vials® ampoules, 25 ml sample cup, ampoule blank, and instructions. This test is designed for use in bottled water and drinking water applications where ozone is used as a disinfectant. This kit requires the use of a SAM photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell and with a Z dimension of 15 mm or less.