Failsafe 3 : A design feature that provides for the maintenance of safe operating conditions in the event of a malfunction of control devices or an interruption of an energy source
NFPA 59A Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG), 2009 ed. http://www.giignl.org/sites/default/files/PUBLIC_A REA/About_LNG/4_LNG_Basics/lng_4_-_operational_int egrity_7_3_09-aacomments-aug09.pdf, (Std: Prod, Storage, and Hndlg of LNG - Amer) {215 NFC}