DGR Class 3 — Flammable Liquids

DGR Class 3 — Flammable Liquids are liquids, mixtures of liquids, or liquids containing solids in solutions that give off a flammable vapor at temperatures of not more than 60°C (140°F). These substances present fire and explosion hazards, as well as toxic effects from inhalation or contact with skin during air transport. Flammable liquids are assigned to Packing Groups I through III based on their flash point and boiling point.

A Lufthansa Cargo shipment with AWB number 020-12345678 contains 5 drums of acetone (UN 1090, Class 3, Packing Group II) totaling 200 liters for transport from Frankfurt (FRA) to Dubai (DXB). An Emirates SkyCargo consignment carries AWB 176-98765432 with 12 cases of paint thinner (UN 1297, Class 3, Packing Group II) weighing 480 kg from Dubai (DXB) to New York JFK (JFK).

• Class 3
• flammable liquid cargo
• flammable liquids air freight

What is the maximum flash point for liquids classified as DGR Class 3 — Flammable Liquids?

The maximum flash point is 60°C (140°F) for closed-cup tests or 65.6°C (150°F) for open-cup tests. Any liquid with a flash point above these temperatures is not classified as Class 3.

What are the passenger aircraft quantity limits for DGR Class 3 — Flammable Liquids by packing group?

Passenger aircraft limits vary by packing group: viscous flammable liquids in Packing Group III are limited to 30 L net quantity per package, while cargo aircraft allow up to 100 L for the same materials. Liquids with flash points below 0°C are prohibited on passenger aircraft.