This specification specifies the maintenance period and content of diaphragm reciprocating compressors, including maintenance and mass standards, commissioning and acceptance, and maintenance and troubleshooting. It is suitable for the maintenance of specific types of diaphragm reciprocating compressors, and can also be used as a reference for the maintenance and repair of Miscellaneous similar compressors. The basis for preparation and revision includes the maintenance and repair procedures for piston compressors in chemical plants, the Chemical Machinery Manual, and equipment technical data. The maintenance period and content are listed in detail in Table 1.