This specification specifies the selection of tanks for petrochemical storage and transportation systems and the design principles and technical requirements for normal pressure, low pressure and pressure storage tank areas. This specification is applicable to the design of new construction, reconstruction and expansion projects of storage and transportation system tank areas for liquid materials (including raw materials, intermediate raw materials, finished products and auxiliary production materials) in petrochemical and coal chemical enterprises. It does not apply to liquefied hydrocarbons and liquid ammonia. Design of low-temperature and normal-pressure storage tank areas and liquefied natural gas storage tank areas.