A chemical indicator device for use in detecting exposure to an oxidizing agent,such as hydrogen peroxide, comprising a substrate or support upon which is disposeda chemical indicator composition (ink) for detecting an oxidizing agent, suchas hydrogen peroxide. The chemical indicator composition further comprisesan indicator dye that achieves a distinct range of different color changes withclear transitions between colors, upon exposure to different doses of the oxidizingagent, thus allowing for both a qualitative and semi-quantitative assessmentof exposure to the agent.
