This part of ISO 8526 specifies the dimensions of workholding pallets for use with machine tools and in manufacturing systems.
It applies to the following nominal sizes of pallet:
320 mm, 400 mm, 500 mm, 630 mm and 800 mm
SIS SS-ISO 8526-1:1992 history
1992SIS SS-ISO 8526-1:1992 Modul?r units for machine tools — Work- holding pallets — Part 1: Workholding pallets up to 800 mm nominal size