class-2-1-flammable-gas

name	class-2-1-flammable-gas
description	Use when handling Class 2.1 flammable gas (propane, hydrogen, acetylene). Cylinder requirements, transport vessel types, safety practices.

Class 2 1 Flammable Gas

Gases that ignite in air: propane/LPG (UN1075), acetylene (UN1001), hydrogen (UN1049), methane.

Cylinders

• DOT-spec cylinders (DOT-3A, DOT-3AA, DOT-39)
• Requalification every 5-10 years
• Markings: spec, test date, owner
• Valve protection during transport

Bulk

• MC-331 cargo tanks for LPG
• Tube trailers for hydrogen, helium

Safety

• No smoking within 25 feet
• Bonding/grounding during transfer
• Emergency shutoff valves

Common violations

Expired cylinder requalification. Missing valve protection.

Where this fits in X3 Compass

Applied in the X3 Compass Hazmat Center add-on.