What are the four sections of DOT placard?
What are the four sections of DOT placard?
The square is divided into four sections, color coded: Red – flammability; blue – health hazard; yellow – reactivity/instability; White – special hazard, such as oxidizers, water reactive or Asphyxiating gas. The red, yellow and blue sections are labeled on scale of 0 to 4; 0 ‘minimal hazard’ to 4, ‘severe hazard’.
What are the components of a placard?
Each placard includes the color, symbol, and name of the class into which the hazard falls. Included with the DOT placards are United Nations identification numbers specific to each transported substance. The numbers are displayed inside the placard or in an orange rectangle immediately below the placard.
What does RQ stand for Hazmat?
Column 2 of TABLE 1, entitled “Reportable quantity (RQ)”, contains the reportable quantity (RQ), in pounds and kilograms, for each hazardous substance listed in Column 1 of TABLE 1. 5. A series of notes is used throughout TABLE 1 and TABLE 2 to provide additional information concerning certain hazardous substances.
What does no hazmat mean?
HAZMAT is an abbreviation for “hazardous materials”—substances in quantities or forms that may pose a reasonable risk to health, property, or the environment. HAZMATs include such substances as toxic chemicals, fuels, nuclear waste products, and biological, chemical, and radiological agents.
How many numbered hazard classes are there?
nine classes
A visor card guide for state and local law enforcement officials illustrating vehicle placarding and signage for the following nine classes of hazardous materials: 1) Explosives, 2) Gases, 3) Flammable Liquid and Combustible Liquid, 4) Flammable Solid, Spontanaeously Combustible and Dangerous When Wet 5) Oxidizer and …
What is the purpose of placard?
Placards are a source of information identifying the type of hazard the hazardous material being shipped poses. They are a key component of an international system of hazard communication that also includes shipping paper, package marking and labeling requirements.
What does NA stand for in hazmat?
North American (NA) Numbers are identical to UN numbers. If a material does not have a UN number, it may be assigned an NA number. These numbers are required for the shipment of hazardous materials.
