This standard BS ISO 5480:2020 Ships and marine technology. Guardrails for cargo ships is classified in these ICS categories:
47.020.10 Hulls and their structure elements
This document specifies dimensions, materials, quality of manufacture and finish for guardrails and stanchions fitted on exposed freeboard and superstructure decks of cargo ships to prevent personnel falling overboard or to lower decks. It is not applicable to guardrails fitted near compasses.