This standard BS EN ISO 9093:2021 Small craft. Seacocks and through-hull fittings is classified in these ICS categories:
47.080 Small craft
This document specifies requirements for through-hull fittings, seacocks, hose connections, their fittings and their installation in small craft with a length of hull, LH, as defined in ISO 8666:2020, of up to 24 m.
This document is not applicable to engine and heater exhaust fittings, and sail drive through-hull fittings.