Projection Hazard - #2(Explosives 1.2)
Minor explosion hazard, no significant blast - #4(Explosives 1.4)
Mass explosion hazard - #1(Explosives 1.1)
Predominantly fire hazard - #3(Explosives 1.3)
Extremely insensitive hazard - #6(Explosives 1.6)
Burning/explosion during normal transport unlikely - #5(Explosives 1.5)
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Answer cordinates with number on sign.
Corrosive - 8
Dangerous when wet - 4
Organic peroxid - 5.2
Flammable liquid - 3
Flammable Gases - 2
The number 4 on the NFPA 704 placard indicates the highest hazard in any of the three categories (health, fire, reactivity).
Hazardous materials identified in vehicles and rail cars through the use of placards.
The DOT hazard classification system can be used to identify acute hazards.
explosives
COLOR
The radioactive placard on a vehicle indicates that the vehicle carries some amount or regulated radioactive material.
color of label or placard
Vulnerability
color of the label or placard
A placard identifying hazard class 6 describes the presence of a poisonous gas. For an image, see the related link, below.
The hazard class of the substance being carried
symbol, UN hazard class number, color, UN identification number