Specific Product Coverage	Philippine National Standard/s (PNS)	Enabling Law	Product Image
Refillable seamless aluminum alloy gas cylinders	PNS ISO 7866:2014 Gas cylinders - Refillable seamless aluminium alloy gas cylinders - Design, construction and testing	Department Administrative Order (DAO) No. 22-11, Series of 2022 The New Technical Regulation Concerning The Mandatory Certification of Liquefied Petroleum Gas (LPG) Pressure Vessels, Systems, Services and Ancilliary Products

          This specific product coverage with corresponding version of reference standards shall be mandatory beginning 24 July 2023 as stated in the transitory provision of the DAO 22-11:2022