Both of these Class A substances are solid; under what circumstances cannot they be stored in the same warehouse?
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I would like to ask the experts: can two types of Class A substances, one that releases flammable gases when in contact with water and another that is a regular Class A flammable solid, be stored in the same warehouse? If it is possible, what special settings are required for the warehouse? If not, could you please let me know why, and what standards or regulations apply?
Substances of Class A that release flammable gases when in contact with water should be classified as Category A 3.4; the other solid material of Class A you mentioned appears to belong to Category A 1.2.5.6. These two types of materials are not allowed to be stored in the same warehouse, and the building codes specify specific requirements for warehouses designated for Category A 3.4 and those for Category A 1.2.5.6.
Thank you for your reply. I understand now; I hadn’t realized this aspect when studying building codes before. “In Table 3.3.2, which lists the number of floors and area of warehouses, and Table 3.5.1, which specifies the fire separation distances (in meters) between Class A warehouses and other buildings, open flames or spark-producing areas, railways, roads, etc., items 1, 2, 5, 6 and items 3, 4 related to Class A warehouses are indeed described separately. However, neither the text nor the explanations provided state that these two types cannot be stored in the same warehouse; is there a regulation in some other standard that addresses this?
Interpretation of Article 3.1.4 of the Building Code: “In addition, Class A and B items, ordinary items, as well as items that are prone to chemical reactions with each other or have different fire extinguishing methods, must be stored in separate rooms or warehouses. The name, properties, and fire extinguishing methods of the stored items must be indicated in prominent locations.” Therefore, to ensure safety and facilitate management, it is advisable to store only one type of substance in the same warehouse or within the same fire compartment” ； Therefore, these two substances can be stored in the same Class A warehouse, but they must be in separate fire compartments.
It is generally not recommended to store these two substances in the same warehouse. If you must store them together, then the warehouse must be designed to meet high standards； For example, if items A3.4 are to be placed together with items A1.2.5.6, then a warehouse of type A must be used for items A3.4, while items A1.2.5.6 should be stored in a separate fire compartment. You can also take a look at the requirements outlined in the \"General Rules for the Storage of Commonly Used Chemical Hazards\" GB15603, which specify requirements for stored separately, isolated from each other, and apart from one another.
No, those that release gas when in contact with water and other such items cannot be placed together, as it causes conflicts in rescue operations