STABLE, NON-HAZARDOUS INDICIA FOR BIOCIDAL IRRADIATION OF A PACKAGE

摘要

An item of mail or other container having an irradiation target area containing a radiochromic polyacetylene monomer indicia which is substantially stable to incident light, humidity and ambient temperatures and which develops a darkened color phase alteration at a level of radiation exposure sufficient to deactivate a bio-hazardous agent and a method or applying said radiochromic polyacetylene to a package or container.