KGS AA313:2020

"This Code applies to the facilities, technology and inspection for manufacturing of cylinder valves that are attached to liquefied petroleum gas cylinder of which water capacity is between 30L and 50L and that is incorporated with excessive flow cut-off device which automatically blocks gas supply when gas over regulated amount flows (Hereinafter referred to as 'cylinder valves') among accessories attached to cylinders conforming to the High-Pressure Gas Safety Control Act (hereinafter referred to as 'the Act'), Article 3, Clause 2. "