NA 109
DIN-Normenausschuss Erdöl- und Erdgasgewinnung (NÖG)
Technische Regel
[AKTUELL]
API RP 505
API RP 505
Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2
Titel (englisch)
Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2