Standards for Establishing Places for Manufacturing, Storing, Processing Public Hazardous Substances and Flammable Pressurized Gases, and Regulations on Safety Control of such Places Article 73

The total gas storage of the liquefied petroleum gases stored at the trading place of liquefied petroleum gases shall not be greater than 128 kg, the part greater than 128 kg may be store at the storage room , the total gas storage is limited to 1000 kg.The storage room mentioned in the preceding paragraph shall meet the following requirements：1.It shall meet the requirements in Article 70.1.1~70.1.3 , 70.1.5 , 70.1.6 , 70.1.10 and 70.1.13.2.It is dedicated to the trading place of liquefied petroleum gases3.It shall be one-floor building and at the same building lot of the trading places of liquefied petroleum gases.4.The roof shall be built with lightweight metal plate or other lightweight non-flammable materials, and the eave shall be at least 2.5m from the ground5.It shall be enclosed by walls at all sides, the walls and floors shall be constructed with non-flammable materials6.The safety distances between the exterior walls to the Class 1 and Class 2 objects under protection are not less than 8m. The safety distance may be reduced to 1m if the exterior wall of the storage room is RC construction in thickness not less than 15 cm or any other explosion proof wall with the equivalent to or higher strength.7.The access shall be provided with fire doors of 30 minutes and more fire rate.The stand-by quantity of liquefied petroleum gases shall not be greater than 80 kg for business use, and not greater than 40 kg for domestic use.