What is DOT hazard classification?

DOT Hazard Classification System Placards are used to identify the class or division of a material. The hazard class or division number must be displayed in the lower corner of a placard and is required for both primary and subsidiary hazard classes and divisions, if applicable.

What are the Nine DOT Hazmat classifications?

The nine hazard classes are as follows:

  • Class 1: Explosives.
  • Class 2: Gases.
  • Class 3: Flammable and Combustible Liquids.
  • Class 4: Flammable Solids.
  • Class 5: Oxidizing Substances, Organic Peroxides.
  • Class 6: Toxic Substances and Infectious Substances.
  • Class 7: Radioactive Materials.
  • Class 8: Corrosives.

How many hazard classifications are used by the DOT?

nine different categories
The DOT separates hazardous materials into nine different categories or “hazard classes.” They are defined by specific hazardous properties and have distinct regulatory requirements for packaging, markings, and labels.

What is a Class 3 hazard classification?

Class 3 dangerous goods are flammable liquids with flash points no more than 60 celcius degrees. It covers liquid substances, molten solid substances with a flash point above 60 celcius degrees and liquid desensitized explosives.

What is a division 1.1 1.2 or 1.3 material?

Division 1.1: Substances and articles which have a mass explosion hazard. Division 1.2: Substances and articles which have a projection hazard but not a mass explosion hazard. Division 1.3: Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both.

What is a Class 2 hazard?

Class 2 hazards are compressed gases, which are divided into four categories: flammable/combustible gases, non-flammable/non-poisonous gases, toxic/poisonous gases, and oxygen.

What is a Class 6 hazard?

Hazard Class 6 consists of two divisions: Division 6.1 includes toxic substances, poisons, and irritating material. Examples of Division 6.1 materials (not all of which are mailable) include bromobenzyl cyanide, methyl bromide, motor fuel anti-knock mixtures, and tear gas. Division 6.2 includes infectious substances.

Is Class 9 considered hazmat?

In the classification system of the U.S. Department of Transportation’s (DOT) hazardous materials, Class 9 hazmats are those that don’t come under any of the other hazmat classes (e.g., explosives, flammables). But, they are still hazardous materials and there is a placard for them.

What are the 5 classifications of hazards?

5 Major Hazards in the Workplace

  • Falls and Falling Objects.
  • Chemical Exposure.
  • Fire Hazards.
  • Electrical Hazards.
  • Repetitive Motion Injury.

What is a division 1.5 material?

§ 176.410 Division 1.5 materials, ammonium nitrate and ammonium nitrate mixtures.

What is a Class 2 Division 2.1 hazardous material?

Class 2 – Compressed Gases (49 CFR 173.115) Division 2.1 – Flammable Gas – A material that is a gas at 20º C or below and. 101.3 kPa of pressure (ambient temperature and pressure), i.e. the material has a. boiling point of 20º C at sea level and: • Is ignitable when in a mixture of 13 percent or less by volume with air …

What are the classification of hazards in the dot hazard system?

DOT Hazard Classification System. Class 1 – Explosives. Division 1.1 Explosives which have a mass explosion hazard. Division 1.2 Explosives which have a projection hazard but not a Class 2 – Gasses. Class 3 – Flammable liquids (and Combustible liquids [U.S.]) Class 4 – Flammable solids;

How do you identify the hazard class of dangerous goods?

The hazard class of dangerous goods/commodities is indicated either by its class (or division) number or name. Placards are used to identify the class or division of a material.

What is the 49 CFR Part 172 for hazardous materials?

See 49 CFR, Part 172, Subpart F, for complete placarding regulations. The Hazardous Materials Table [§172.101, Col. 6] identifies the properlabel(s) for the hazardous material listed. Any person who offers a hazardous material for transportation MUST label thepackage, if required [§172.400(a)].

Who is required to label hazardous materials for transportation?

Any person who offers a hazardous material for transportation MUST label thepackage, if required [§172.400(a)]. Labels may be affixed to packages when not required by regulations, providedeach label represents a hazard of the material contained in the package[§172.401]. For labeling mixed or consolidated packages, see §172.404.

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