Chloride Test Kit, 1 drop=10,25,50,100,500 ppm CI. Reagents Included: HZSN3410-B, Chloride (Silver Nitrate) Titrant, 60ml; HZPC8025-B, Potassium Chromate Indicator, 60ml; HZSA1555-B, Alkalinity Titrant Low, 60ml; HZPH1605-A, Phenolphthalein Indicator, 30ml.