WHITMAN DAVID A,READ DAVID M,PARTHASARATHY RANJANI V,LANDGREBE KEVIN D,BENNETT ANTHONY E
申请号：
IN10608/CHENP/2012
公开号：
IN2012CN10608A
申请日:
2012.12.20
申请国别(地区):
IN
年份:
2014
代理人:
摘要：
Chemical indicator compositions comprising a bismuth compound elemental sulfur and a compound with relatively high water solubility which makes the composition alkaline when exposed to water vapor at an elevated temperature a chemical indicator comprising a substrate and the composition coated on at least a portion of a major surface of the substrate and methods of making and using the chemical indicator are disclosed.
