This standard BS EN ISO 9519:2023 Ships and marine technology. Single rungs and rungs for dog-step ladders is classified in these ICS categories:
47.020.10 Hulls and their structure elements
47.020.50 Deck equipment and installations
This document specifies the types, structure, dimensions, technical requirements, inspection and designation of single rungs and rungs for dog-step ladders, fitted to the vertical panel or masts of ships or other marine structures.