This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of instrument horizontal lathes. This standard applies to instrumented horizontal lathes and their derivatives with a maximum workpiece rotation diameter of 250mm and a maximum workpiece length of 500mm.
JB/T 4136.2-1999 history
2017JB/T 4136.3-2017 Instrument Lathes Part 3: Accuracy Inspection of Horizontal Lathes