规定了使用以下接头的水井套管钢管的公差和尺寸:螺纹和承插对接接头，外径114.3至406.4 mm；螺纹平齐对接接头外径114.3至1016.0 mm；对接焊接接头，外径114.3至1220 mm。规定了钢材和保护系统的最低等级。交叉引用:BS 3416BS 3601DD 82API 5AAPI 5LASTM A 120

Specifies tolerances and dimensions of steel tubes for water well casing using the following joints: screwed and socketed butt joint, 114.3 to 406.4 mm OD; screwed flush butt joint 114.3 to 1016.0 mm OD; butt welded joint, 114.3 to 1220 mm OD. A minimum grade of steel and protection systems are specified.Cross References:BS 3416BS 3601DD 82API 5AAPI 5LASTM A 120