API Std 620

Design and Construction of Large, Welded, Low-Pressure Storage Tanks, Eleventh Edition, Includes Addendum 1 (2009), Addendum 2 (2010), and Addendum 3 (2012)
standard by American Petroleum Institute, 02/01/2008

API TR 412 and 414

A Range Finding Developmental Inhalation Toxicity Study of Unleaded Gasoline Vapor Condensate in Rats and Mice via Whole Body Exposures
standard by American Petroleum Institute, 04/01/1998