Test strains are as the follows: Escherichia coli, staphylococcus aureus, salmonella paratyphi, pseudomonas aeruginosa and clostridium sporogenes.

• 菌种：大肠埃希菌、金黄色葡萄球菌、乙型副伤寒沙门菌、铜绿假单胞菌及生孢梭菌。