A hazardous materials placard is a standardized sign used to identify the presence of dangerous substances during transport or storage. These placards feature specific colors, symbols, and numbers to indicate the type of hazard, such as flammability, toxicity, or radioactivity. They are crucial for ensuring safety and compliance with regulations, allowing emergency responders and workers to quickly assess risks associated with the materials. Proper use of these placards helps prevent accidents and ensures the safe handling of hazardous materials.
It is a DOT hazardous materials placard indicating compressed oxygen.
The placard on a tanker carrying hazardous materials will tell you the class of the hazard (flammable, explosive, corrosive, etc). If you have access to the North American Guide or a similar reference, the placard will also tell you something a bit more specific about the identity of the hazardous material - its category, or sometimes its chemical name.
The hazard class of the substance being carried
Shipment contains a mixed load of hazardous materials
The number 1853 on a hazmat placard refers to "Polyethylene glycol," a chemical compound often used in various industrial applications. In the context of hazardous materials, this number helps responders quickly identify the substance during emergencies. The placard system is part of the broader Hazardous Materials Identification System, aiding in safe handling and response procedures.
Hazardous materials identified in vehicles and rail cars through the use of placards.
The DOT hazardous materials placard for organic peroxides may be - an all-yellow diamond shape with "ORGANIC PEROXIDE" and "5.2" lettering, or - the revised DOT placard which is red on top and yellow on the bottom, with a stylized flame in the red area.
The hazardous material placard used for 40mm and 240mm ammunition is typically the "Explosive" placard, which is designated with a red background and a symbol of an exploding bomb. This placard indicates that the materials are classified as explosives and require special handling and storage procedures to ensure safety. The specific UN identification numbers associated with the ammunition may vary, so it's essential to refer to relevant regulations for detailed guidance.
Placards are not used in maritime shipping of hazardous materials. Even in US ground transportation, placards are not required for the shipment of "Limited Quantities."
4 sides require placards. Front, back, and both left/right sides.
The DOT placard for organic peroxides is a yellow diamond with "ORGANIC PEROXIDE" lettering and the hazard identifying number "5.2" on it. The revised international version is red on top, yellow on the bottom, with a stylized flame symbol in the red and the numbers 5.2 in the yellow.
A subsidiary hazard that does not require a placard is "Environmentally Hazardous Substance" when it is not classified as a marine pollutant. In such cases, if the primary hazard does not require placarding, the environmentally hazardous substance may not necessitate a placard either. However, it is always important to check specific regulations and guidelines, as requirements can vary by jurisdiction and situation.