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DOT PLACARDS

HAZARD CLASS 1 - EXPLOSIVES

Explosives or any devices or chemicals that are designed to explode or combust.

Orange sign (sometimes) with an explosion graphic on top. Hazard class one (1) & division number or compatibility letter noted at bottom. Explosive or Blasting Agent is spelled out in the middle. Also have compatibility letters, marked A-S, to help signify what other products are safe to travel with them

1.1: Potential to create a mass explosion.
1.2: Potential to create a projectile hazard.
1.3: Potential to create a fire or minor blast.
1.4: No significant risk of creating a blast or hazard.
1.5: Considered very insensitive, that are used as blasting agents.
1.6: Considered extremely insensitive, with no risk to create a mass explosion.

HAZARD CLASS 2 - GASES

Flammable/combustible gases: red sign. Include: ethyl chloride & liquefied petroleum gases.
Non-flammable/non-poisonous gases: green sign. Include: carbon dioxide, compressed helium, nitrogen & helium
Toxic/poisonous gases: white sign. Include: sulphur dioxide, bromine chloride, carbon monoxide & chlorine
Oxygen: yellow sign

HAZARD CLASS 3 - FLAMMABLE LIQUIDS

Includes: paints, alcohols, gasoline, kerosene & ethanol

HAZARD CLASS 4 - FLAMMABLE SOLIDS

Flammable solid: red-and-white vertical-striped

Spontaneously combustible solids: top white, bottom red

Water reactive: Solid blue

HAZARD CLASS 5 - OXIDISING CHEMICALS

Oxidising chemicals that could be prone to combustion.

Oxidisers: designated with a yellow label, with an oxygen logo at the top. Hazard class 5.1 at the bottom

Organic peroxides: designated with a half-red & half-yellow label, with a flammable graphic at the top in the red portion. Hazard 5.2 located at the bottom.

HAZARD CLASS 6 - POISONOUS MATERIALS

Poisonous substances & biohazard substances

Poisonous substances: identified by a white poison sign with a skull and crossbones graphic at the top and hazard class six (6) at the bottom. Include aerosols, ammonium fluoride, mercury-based pesticides & phenol

Biohazard substances: identified by a white sign with a biohazard logo at the top and hazard class six (6) at the bottom. Includes biological substances, regulated medical waste or virus cultures.

HAZARD CLASS 7 - RADIOACTIVE SUBSTANCES

Radioactive materials and substances are recognised by yellow & white HAZMAT signs, with a radioactive logo at the top, yellow portion & the hazard class seven (7( at the bottom, on the white portion

HAZARD CLASS 8 - CORROSIVE SUBSTANCES

Include: hydrochloric acid, potassium hydroxide and sodium hydroxide

HAZARD CLASS 9 - MISC. DANGEROUS GOODS

Include: lithium batteries, asbestos, dry ice & other consumer commodities

NFPA PLACARD

FIRE HAZARD

4 - Below 73° F
3 - Below 100° F
2 - Between 100° F and 200° F
1 - Above 200° F
0 - Will not Burn

REACTIVITY

4 - May Detonate
3 - Shock/Heat may Detonate
2 - Violent Chemical Change
1 - Unstable if Heated
0 - Stable

SPECIFIC HAZARD

ACID
ALK
COR

Acid
Alkali
Corrosive
Radioactive
Use no Water

HEALTH HAZARD

4 - Deadly
3 - Extreme Danger
2 - Hazardous
1 - Slightly Hazardous
0 - Normal Material