DOT Hazard Classes Flashcards

Study Notes

DOT Hazard Classes Overview

Class 1: Explosives
- Categorized by potential for explosion, with subdivisions ranging from mass explosion (1.1) to extremely insensitive materials (1.6).
Class 2: Gases
- Divided into three categories:
  - Flammable gases that ignite easily (2.1).
  - Nonflammable and nonpoisonous gases (2.2).
  - Poisonous gases (2.3).
Class 3: Flammable Liquids
- Encompasses all flammable (3.1) and combustible liquids (3.2) that present fire hazards.
Class 4: Flammable Solids
- Includes:
  - Flammable solids like desensitized explosives and self-reacting substances (4.1).
  - Spontaneously combustible materials such as pyrophoric and self-heating substances (4.2).
  - Hazards of materials dangerous when in contact with water (4.3).
Class 5: Oxidizers & Organic Peroxides
- Oxidizers (5.1) enhance combustion, while organic peroxides (5.2) are unstable and dangerous, especially above 73°F.
Class 6: Poisonous Material
- Includes poisonous solids and liquids (6.1), similar to gases classified in 2.3, and infectious materials (6.2) that can cause illness.
Class 7: Radioactive
- Encompasses materials that emit radiation and require special handling and labeling.
Class 8: Corrosive Materials
- Defined primarily by pH level, indicating their potential to damage living tissue and materials.
Class 9: Miscellaneous Hazards
- Covers any hazardous materials that do not fit into the other classes, ensuring all potential risks are addressed.

Description

This quiz provides flashcards on DOT Hazard Classes, highlighting definitions and specific categories such as Explosives, Gases, and Flammable Liquids. Perfect for students or professionals needing a quick reference for dangerous materials classifications.