This standard specifies the technical performance, technical requirements, test methods, acceptance rules and markings, packaging and storage of water-lubricated reciprocating piston high-pressure oxygen compressors (hereinafter referred to as oxygen compressors). This standard is applicable to bottle filling oxygen compressors with a suction pressure of (0.0005~0.0050) MPa, a rated exhaust pressure of (14.7~16.5) MPa, a nominal volume flow of not more than 200m/h, and a cylinder lubricated with distilled water.