公开(公告)号：US09726652B2

公开(公告)日：2017-08-08

申请号：US14511593

申请日：2014-10-10

Applicant: STERIS INC.

Inventor： Stephen Michael Lacy ,  Neil David Tyers

IPC: G01N31/22 ,  G01N31/00 ,  A61L2/28

CPC classification number: G01N31/226 ,  A61L2/28 ,  G01N31/005 ,  G01N31/228

Abstract: 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 disposed a chemical indicator composition (ink) for detecting an oxidizing agent, such as hydrogen peroxide. The chemical indicator composition further comprises an indicator dye that achieves a distinct range of different color changes with clear transitions between colors, upon exposure to different doses of the oxidizing agent, thus allowing for both a qualitative and semi-quantitative assessment of exposure to the agent.