Study on influencing factors of common chemical disinfectants used to metal / 中华疾病控制杂志

ABSTRACT

Objective　In order to find out influencing factors of corrosiveness of common chemical disinfectants used at present for medical instruments on varied metal material, and to offer scientific bases for working -out corresponding state standards. Methods　Liquid instruments disinfectants containing chlorine and glutaraldehyde compound disinfectant were chose to take an example to study their corrosiveness to varied sorts and type s of the metal. Sing le related factors were researched by contrast test study in the process of dete rmining metal corrosion rate (R value, mm*a-1) citing from GB10124-88 me thod. Results　Varied chemical disinfectants had different metal R valu e. R value was in fluenced by kinds of metal pieces, sorts of soaked vessel material, drying tempe rature, whether changing liquid disinfectants or not and water quality, while d ifferent capacity of balance measure had no effect on R value. Concl usi ons　R value was affected by kinds and types of metal pieces and other factors. These fac tors should be considered sufficiently while determining or comparing corrosiven ess of chemical disinfectants to soaked metal.