Class 2 Hazards
Class 2 Hazards covers flammable and non flammable gasses that are pressurized for shipment and storage.
Some common types of gasses covered under class 2 hazards are
- Carbon dioxide
- Aerosol containers of any kind
Class 2 Hazard have three divisions:
- Flammable gasses
- Non Flammable gasses
- Poisonous / Toxic gasses.
2.1 Flammable Gases are known to ignite on contact with ignition sources and readily burn in air and are in a gaseous state at 68°F (20 °C). Flammable gas means any material that:
- Is ignitable at 101.3 kPA (14.7 psia) when in a mixture of 13 percent or less by volume with air; or
- Has a flammable range at 101.3 kPa with air of at least 12 percent regardless of the lower limit.
- Is determined to be flammable in accordance with ASTM E681-85, Standard Test Method for Concentration Limits of Flammability of Chemicals
(e.g., propane, hydrogen, spray paints and many others).
2.2 Non-Flammable, Non-Toxic gasses may include liquified gasses or cryogenic liquids these are neither highly flammable nor toxic, but still often require proper precautions to handle. (e.g., helium, Liquid Oxygen and asthma inhalers).
2.3 Poisonous gasses are toxic or presumed toxic to humans and are highly dangerous when humans inhale them.
(e.g., carbon monoxide, chlorine gas).