From the effective date of this standard, JB/GQ 1154-90 "Precision of Multipurpose Lathes" will be invalidated. This standard specifies the requirements and inspection methods for geometric accuracy and working accuracy of multi-purpose lathes. This standard applies to multi-purpose lathes with a maximum rotation diameter of 250 to 400 mm and a maximum workpiece length of 1000 mm.
JB/T 8483.1-1996 history
2011JB/T 8483.1-2011 Versatile lathes.Part 1:Testing of the accuracy