In an indoor storage place for the storage of Class 5 public hazardous materials classified as Type A or B, its location, construction and equipment shall meet the following requirements in addition to those set forth in Article 21:1.The safety distance between its exterior wall and abutted buildings is specified in Attachment Table 2. However, if its storage quantity is less than 5 times the control quantity and if its exterior wall is of concrete reinforced with steel bars or steel structures in thickness not less than 30 cm, the safe distance between the exterior wall and abutted buildings may be calculated using peripheral retaining wall. Those with a peripheral retaining wall may have its safe distance with places specified in Subparagraphs 3 and 4 of Paragraph 1 of Article 13 reduced to 10 m.2.The width of the reserved space in surroundings the warehouse is specified in Attachment Table 3.3.The warehouse shall be separated into several areas with partition walls and each area shall be less than 150 m2. The partition wall shall be of concrete reinforced with steel bars or steel structures in thickness not less than 30 cm, or hollow blocks reinforced with steel bars or steel structures in thickness not less than 40 cm. Each wall shall protrude from the roof for not less than 50 cm and from both sides of the exterior wall for not less than 1 m.4.The external wall of the warehouse shall be concrete walls reinforced with steel bars or steel structures in thickness not less than 20 cm; or hollow brick walls reinforced with steel bars or steel structures in thickness not less than 30 cm.5.The roof of the warehouse shall meet one of the following requirements:(1)The wooden members for the structure of the surface of the roof shall have a span not greater than 30 cm;(2)Grill beam structure made of circular steel or lightweight steel materials shall be provided for the structure below the roof with the length of the side not longer than 45 cm;(3)A metal mesh shall be provided below the roof and tightly secured to the beams and girdles made of non-flammable materials; or(4)Wood penal in thickness not less than 5 cm and width not less than 30 cm shall be provided as the foundation for the roof.6.The access to the warehouse shall be of fire doors of 1 hour and more fire rate.7.The window of the warehouse shall be at least 2 m from the ground. The total surface area of the windows provided on the same wall shall not be greater than one-eightieth (1/80) of the total surface of that wall; and the surface area of each window shall not be greater than 0.4 m2.Schedule 2.PDFAttachment 3.PDF