39 GB/T 5656-1994 离心泵技术条件(II类) Technical specifications for centrifugal pumps--Class II
40 GB/T 5657-1995 离心泵技术条件(Ⅲ类) Technical specifications for centrifugal pumps--Class Ⅲ
41 GB/T 5660-1985 轴向吸入离心泵底座尺寸和安装尺寸 End-suction centrifugal pumps--baseplate and installation dimensions
42 GB/T 5661-1985 轴向吸入离心泵机械密封和软填料用的空腔尺寸 End-suction centrifugal pumps--Dimensions of cavities for mechanical seals and for soft packing
43 GB/T 5662-1985 轴向吸入离心泵 (16 bar) 标记、性能和尺寸 End-suction centrifugalpumps (rating 16 bar)--Designation, nominal duty point and dimensions
44 GB/T 5773-1986 容积式制冷压缩机性能试验方法 The methods of performance test for positive displacement refrigerant compressors
45 GB 5842-1996 液化石油气钢瓶 Liquefied petroleum gas cylinders
46 GB/T 5905-1986 起重机试验规范和程序 Cranes--Test code and procedures
47 GB/T 5973-1986 钢丝绳用楔形接头 Cuneiform conector for use with steel wire ropes
48 GB/T 5974.1-1986 钢丝绳用普通套环 General purpose thimbles for use with steel wire ropes
49 GB/T 5974.2-1986 钢丝绳用重型套环 Heavy thimbles for use wire steel wire ropes
50 GB/T 5975-1986 钢丝绳用压板 Clamping plates for fixing steel wire ropes
51 GB/T 5976-1986 钢丝绳夹 Wire rope grips
52 GB/T 6067-1985 起重机械安全规程 Safety rules for lifting appliances
53 GB/T 6068.1-1985 汽车起重机和轮胎起重机试验规范 一般要求 Test code for truck crane and mobile crane--General requirements
54 GB/T 6068.2-1985 汽车起重机和轮胎起重机试验规范 合格试验 Test code for truck crane and mobile crane--Conformity test
55 GB/T 6068.3-1985 汽车起重机和轮胎起重机试验规范 稳定性的确定 Test code for truck crane and mobile crane--Determination of stability
56 GB/T 6068.4-1985 汽车起重机和轮胎起重机试验规范 结构试验 Test code for truck crane and mobile crane--Structure test