Class 2: Compressed Gas Flashcards

Division 2.1: Flammable Gas

• Comprises gases that can ignite and sustain combustion.
• Examples include propane and other combustible materials.

Division 2.2: Non-flammable, Non-poisonous Compressed Gas

• Includes cryogenic gases categorized under Division 2.2.

Cryogenic Liquid

• Defined as a liquefied gas maintained at extremely low temperatures.
• Has a boiling point lower than -130°F at standard atmospheric pressure.

Division 2.3: Poisonous Gas

• Characterized as extremely hazardous and potentially lethal to humans.

Class 2 Major/Primary Hazard

• BLEVE stands for Boiling Liquid Expanding Vapor Explosion, a critical safety risk associated with pressurized gases.

Flammable Placard

• Identified by a red background featuring a white flame symbol, indicating flammable materials.

Nonflammable Placard

• Marked with a green background and a white cylinder symbol, denoting non-flammable gases.

Oxidizer Placard

• Displayed with a yellow background and a flaming "O" symbol, indicating oxidizing agents.

Poison Gas Placard

• Features a white background with a skull and crossbones, signaling the presence of toxic gases.