How much dry ice is safe?
Thread Starter

Joined: Sep 2001
Posts: 86
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From: aboard
How much dry ice is safe?
You sometimes carry significant amounts of dry ice, to keep certain freight like perishable foodstuff or medical supplies cool.
Does anyone have experience with how much dry ice you can carry, before the CO2 it produces becomes a hazard to the crew?
Does anyone have experience with how much dry ice you can carry, before the CO2 it produces becomes a hazard to the crew?

Joined: Aug 1998
Aviation Qualifications: ATPL
Posts: 6,623
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From: Ex-pat Aussie in the UK
Yes - the prescribed amount is in IATA Dangerous Goods Regulations.
eg:
eg:
CO-03 The carriage of Carbon dioxide, solid (Dry ice), UN1845 will be limited to the following established limits:
• Continental Express and Connection Partners will be limited to: 2.5 kg net weight per package 35 kg net weight per aircraft (The above limits only apply to those carriers that accept UN 1845 as cargo and QUICKPAK) Note: All shipments containing Carbon dioxide, solid (Dry ice), UN 1845, must have a Class 9 label affixed to each package. (See figure 7.3.18)).
• Continental Express and Connection Partners will be limited to: 2.5 kg net weight per package 35 kg net weight per aircraft (The above limits only apply to those carriers that accept UN 1845 as cargo and QUICKPAK) Note: All shipments containing Carbon dioxide, solid (Dry ice), UN 1845, must have a Class 9 label affixed to each package. (See figure 7.3.18)).
Aviator Extraordinaire
Joined: May 2000
Posts: 2,396
Likes: 3
From: Oklahoma City, Oklahoma USA
Well, we only carried enough dry ice to keep food frozen/cold in the galley. The amount of dry ice required was not enough to be considered significant. Never had any problems even on flights exceeding eight hours.
(At least we never had anybody pass out while in the galley.
)
(At least we never had anybody pass out while in the galley.
)

Joined: May 2011
Aviation Qualifications: LAME
Posts: 237
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From: Surrey UK
Should be venting at floor level in galley's that use dry ice storage, seen some health reaction from cabin crew where these were close off and the galley curtains had been pulled across to give privacy from passengers eyes!







