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Chemical substances that, during transportation, handling, storage, or maintenance, contain hazardous materials such as those that are explosive, flammable, toxic, or corrosive, and that under certain conditions can cause fires or explosions leading to injuries, deaths, and property damage, are collectively referred to as hazardous chemicals. They are typically classified into categories such as flammable substances, highly toxic substances, highly corrosive substances, explosive substances, and strong oxidizing agents. It is precisely these characteristics and hazards of hazardous chemicals that dictate the strict requirements for their storage and transportation ； Especially when storing in explosive hazard areas, higher requirements are placed on the storage equipment. An explosion-proof storage cabinet is a chemical storage device designed and manufactured for hazardous locations. The documents required to apply for an explosion-proof certification for a chemical storage cabinet include: 1. Explosion-proof certification for all electrical components; 2. Instruction manual; 3. Assembly diagram; 4. Electrical schematic diagram (including intrinsically safe connection circuits); 5. Nameplate; 6. Business license. The process for applying for an explosion-proof certification for a chemical storage cabinet is as follows: 1. Conduct a product assessment and provide a preliminary quote for the product for which the certification is sought. The company needs to provide the product instruction manual, electrical schematic diagram, and list of components in order to carry out this assessment, determine what type of explosion-proof certification is suitable for the product, and provide a preliminary quote. 2. Provide samples for testing. 3. Certification: Once the testing is successful and the documents have been approved, an **-grade explosion-proof certification can be issued directly. 4. Timeline: With all the necessary information provided by the company, the process takes approximately 3–4 weeks.