IATA Class 2 Definitions
Atmospheric pressure is typically about 100 kPa at sea level, but it changes based on altitude and weather. Therefore, the atmospheric pressure on the ground will be different from the atmospheric pressure during air transport.
Gauge pressure is pressure in excess of atmospheric pressure. The pressure relating to receptacles, such as test pressure and internal pressure, is always indicated in gauge pressure.
Absolute pressure is the sum of gage pressure and atmospheric pressure. It is referenced in a perfect vacuum. The vapor pressure of a substance is always indicated in absolute pressure.
Pressure differential is the difference in pressure between two points.
Working pressure is the settled pressure of a compressed gas at a reference temperature of 15° C (59° F) in a full pressure receptacle.
To learn more about IATA Dangerous Goods Regulations visit our IATA DGR Online Training Certification Courses web page.
THE BEST ONLINE TRAINING EXPERIENCE POSSIBLE
Fast
Your time is valuable. We've designed our site to be as fast as possible.
Easy to use
You'll never get lost or confused with us.
Immediate Access
There's no waiting period. Begin the course as soon as you sign up.
Anywhere Anytime
Internet connection and a computer, tablet, or smartphone.
Up to date
We update our courses as soon as new regulations come out.