This standard specifies the terminology, pressure classification and product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of dissolved acetylene equipment. This standard is applicable to dissolved acetylene equipment that uses calcium carbide as raw material to produce dissolved acetylene and whose output is equal to or greater than 10m3/h. Acetylene equipment for pipeline transportation of acetylene can also be implemented by reference. This standard does not apply to acetylene equipment in petrochemical processes and special acetylene equipment for national defense, railway, and shipping systems.