DIN 22252 [Withdrawn] references following documents:

Document number Edition Title
DIN 15003 1970-02 Lifting Appliances; Load Suspending Devices, Loads and Forces; Definitions More 
DIN 22257 1990-06 Scraper bars for chain conveyors; outboard chain assembly; dimensions, requirements, testing More 
DIN 685-1 1981-11 Round steel link chains; tested terms More 
ISO 610 1990-08 High-tensile steel chains (round link) for chain conveyors and coal ploughs More