In downstream oil and gas, LPG: vessel with all its permanent support(s) and attachment(s) installed, used for storage of selected LPG Cylinders and Ancillary products (LPG) (footnote 6: PNS 04:2018) [Section 3.15, 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]