Moreover, he recommended generic categories of chemical germicides, by their microbicidal potency that could be used on critical or semicritical items incapable of being sterilized with heat.

• 而且，根据那些能够用于不能耐受热力灭菌的高危险性或中度危险性器械的化学杀菌剂的杀菌力，他推荐了化学灭菌剂的一般分类。