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Do you really understand the four colors of safety? In our daily lives, the most common safety color is green, which guides us along the correct indoor safety routes. In chemical manufacturing processes and in areas where hazardous materials are stored, these four-color signs are quite common. They represent the most fundamental elements, and it is essential that employees possess basic knowledge of safety related to them. These signs help guide people to evacuate promptly or to take appropriate, effective measures to mitigate potential hazards. http://p9.itc.cn/images01/20201014/e3bd1a2223cd46c59cfd86828bd22118.jpeg Safety colors refer to \"colors that convey meanings related to safety,\" and they include red, yellow, blue, and green. What exactly does this mean? Let’s find out together. http://p6.itc.cn/images01/20201014/389a63edcd6b4ce4a605d679ec3fb65e.png http://p8.itc.cn/images01/20201014/87b0bfc3601e48909968001a354d7f61.png Prohibition signs are graphic symbols that prevent people from engaging in unsafe behaviors. The geometric shape of the prohibition sign is a circle with a slash, where the circle is connected to the slash by a red line ； Graphic symbols are in black, and the background is white. http://p9.itc.cn/images01/20201014/64589a4df0d8406381fc82e4ca4ba679.pnghttp://p9.itc.cn/images01/20201014/8bf8a085ed97412883190f9a87c489c0.pnghttp://p6.itc.cn/images01/20201014/cc6bef089b9f4ebf9ec161824dd5ca7d.pngWarning signs are graphic symbols designed to alert people to their surroundings in order to avoid potential dangers. The geometry of the warning sign is a black equilateral triangle, a black symbol, and a yellow background. http://p7.itc.cn/images01/20201014/b1b6c39574d6430d9c40af5ebc40bdd3.pnghttp://p6.itc.cn/images01/20201014/4dec2bbda87843699b50f5b8a371c831.pnghttp://p6.itc.cn/images01/20201014/63670a3361ef4d719bf0656ddf4b8650.pngInstruction signs are graphic symbols that compel people to take certain actions or implement preventive measures. The geometric shape of the instruction flag is circular, with a blue background and a white graphic symbol. http://p4.itc.cn/images01/20201014/8a612ded32fb4eceb2f89f6de9f40c97.png http://p0.itc.cn/images01/20201014/716c697d95314a4d8a457e1188a711db.png http://p6.itc.cn/images01/20201014/ade05cb510de408cbf66f29272e77c50.png Indicator signs are graphic symbols that provide people with certain information (such as indicating safety facilities or locations). The geometric shape of the indicator flag is square, with a green background, white graphic symbols, and text. http://p2.itc.cn/images01/20201014/05e84ca372db482c83069dcdf6d706f1.png Guidelines for the installation of safety warning signs: 1. Safety signs should be placed in locations that are clearly related to safety, ensuring that people have enough time to notice the information they convey. 2. Safety signs installed in a specific location should be firmly mounted to ensure they do not pose a hazard themselves, and all signs must have a sturdy structure. 3. When safety signs are placed on walls or other existing structures, the background color should be a contrasting color to the main color on the sign. 4. Safety signs whose displayed information is no longer useful should be removed immediately from their installation location. 5. To ensure the signs function effectively, they should be inspected and cleaned regularly. If any deformation, damage, discoloration, loss of graphic symbols, or deterioration in brightness is detected, they should be replaced promptly. Workers in facilities where hazardous chemicals are produced and stored need to understand the importance of four-color safety signs, as they not only help prevent accidents but also provide guidance on the correct escape routes in the event of an accident. The main content of this article comes from the Hunan Emergency Management Department.