The Gas Free Vent Cover is designed to be operated at the time of gas freeing of the tank for the safety of oil tanker or chemical vessel, according to the rules of IMO and SOLAS.
International Standard
INTERNATIONAL STANDARD
IMO MSC/Circ. 1009 & IMO MSC.1/Circ.1324
IMO MSC/Circ.677
ISO 16852:2016