This standard specifies the technical requirements, testing and acceptance methods of the JZ-7 locomotive air brake unit, as well as the testing and closing operation sequence. This standard applies to internal and electric locomotives equipped with JZ-7 locomotive air brakes.
1992TB/T 2232-1991 JZ-7 type locomotive air brake stand-alone test and technical conditions for acceptance
TB/T 2232-1991 JZ-7 type locomotive air brake stand-alone test and technical conditions for acceptance was changed to TB/T 2056.3-2019 Locomotive Brakes Part 3: Air Brakes.