In downstream oil & gas, LPG: parts, devices, and accessories necessary and indispensable for the safe and proper operation of an LPG pressure vessel such as seals, valves, hoses, and regulators [Section 3.1, Rule 3, DTI Department Administrative Order No. 22-11, Series of 2022, The New Technical Regulation Concerning the Mandatory Certification of Liquefied Petroleum Gas (LPG) Pressure Vessels, Systems, Services and Ancillary Products]
