This standard specifies the terminology, product classification, test methods, inspection rules, marking, packaging, transportation and storage requirements for pre-vacuum pressure steam sterilizers. This standard applies to pre-vacuum pressure steam sterilizers with vacuum systems. This product is used by medical units for sterilizing dressing fabrics, surgical instruments, medical liquids, etc. It can also be used by pharmaceutical factories, biological products and biomedical research institutions for sterilization. For bacteria.