Posted  on Oct 11, 2011 in 
Federal Regulation, 
Safety & Security | 
Comments Off on PHMSA Approves Two Vapor Dispersion Models
			
						
						The U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA) has approved two additional vapor dispersion models for calculating exclusion zones: Det Norske Veritas’s Process Hazard Analysis Software Tool – Unified Dispersion Model and GexCon US Inc.’s FLACS (Version 9.1, Release...