常用化学消毒剂对金属腐蚀性影响因素

Study on influencing factors of common chemical disinfectants used to metal

目的 探索我国目前常用的医疗器械浸泡用化学消毒剂对不同质地金属腐蚀性的影响因素 ,为制订相应国家标准提供科学依据。方法 将 GB10 12 4- 88腐蚀速率 (R值 ,m m· a- 1 )测定过程中涉及的有关因素 ,选择目前常用的戊二醛和含氯器械消毒液与不同种类、型号的金属片进行单因素试验对比研究。结果 不同种类的化学消毒剂、不同种类金属、同一种类不同型号金属、浸泡容器不同材质、烘干温度、浸泡中换液与否及水质对 R值均有不同程度的影响 ,而不同感量天平称重无明显影响。结论 金属腐蚀性受多因素影响 ,因此在进行化学消毒剂对金属腐蚀性测定及比较时 。

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 types of the metal. Single related factors were researched by contrast test study in the process of determining metal corrosion rate (R value, mm·a -1 ) citing from GB10124 88 method. Results Varied chemical disinfectants had different metal R value. R value was influenced by kinds of metal pieces, sorts of soaked vessel material, drying temperature, whether changing liquid disinfectants or not and water quality, while different capacity of balance measure had no effect on R value. Conclusions R value was affected by kinds and types of metal pieces and other factors. These factors should be considered sufficiently while determining or comparing corrosiveness of chemical disinfectants to soaked metal.