[PDF] API 2000: Venting Atmospheric and

api2000OFFICE OF THE FEDERAL REGISTER. WASHINGTON, D.C.. Document Name: CFR Section(s):. Standards Body: e. American Petroleum Institute. API 2000: Venting AtmosphericAPI 2000. To display this page you need a browser that supports JavaScript. Cal_01, Emergency Vent Capacity Per API 2000. Cal_02, Normal Vent Capacity Per