Creative Oz-Air [I] Pvt. Ltd. Offers Ozone Test Kits. Creative Oz-Air [I] Pvt. Ltd. Is an ISO 9001: 2000 accredited company. The specifications of Ozone Test Kits are as follows: Calorimetric Determination using DPD Tablets, Ozone Dissolution 0-2.3 mg/ it Least Count 0.01 mg / lit