API RP 2000-1952 GUIDE FOR TANK VENTING AND RECOMMENDED PROCEDURE FOR TESTING VENTING DEVICES FOR LOW-PRESSURE ABOVEGROUND STORAGE TANKS FOR PETROLEUM AND PETROLEUM PRODUCTS
1965API RP 2000-1965 Leitfaden zum Entlüften von atmosphärischen und Niederdruck-Lagertanks (Zweite Ausgabe)
1952API RP 2000-1952 GUIDE FOR TANK VENTING AND RECOMMENDED PROCEDURE FOR TESTING VENTING DEVICES FOR LOW-PRESSURE ABOVEGROUND STORAGE TANKS FOR PETROLEUM AND PETROLEUM PRODUCTS