Delivery: Nitrate instrumental test kit comes in a cardboard box and contains everything needed to perform 30 tests (except distilled water): thirty ampoules, thirty cadmium foil packs, 25 ml sample cup, reaction tube with lid, 3.0 ml syringe, ampoule blank, and instructions. This kit requires the use of a CHEMetrics direct-readout photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell. Instrument sold separately.