Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

How much dry ice is safe?


Notices
Tech Log The very best in practical technical discussion on the web

How much dry ice is safe?

Old 20th June 2011 | 20:46
  #1 (permalink)  
Thread Starter
20 Anniversary
 
Joined: Sep 2001
Posts: 86
Likes: 4
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?
Mariner is offline  
Reply
Old 20th June 2011 | 21:05
  #2 (permalink)  
25 Anniversary
 
Joined: Aug 1998
Aviation Qualifications: ATPL
Posts: 6,623
Likes: 847
From: Ex-pat Aussie in the UK
Yes - the prescribed amount is in IATA Dangerous Goods Regulations.

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)).
Checkboard is offline  
Reply
Old 20th June 2011 | 22:41
  #3 (permalink)  
 
Joined: Mar 2011
Posts: 1,407
Likes: 0
From: engineer at large
oh great...how does this add to your carbon charge?
FlightPathOBN is offline  
Reply
Old 21st June 2011 | 00:12
  #4 (permalink)  
 
Joined: Jan 2010
Posts: 77
Likes: 0
From: melbourne australia
helps to educate people to not hold it in bare hands as burns skin
lynn789 is offline  
Reply
Old 21st June 2011 | 02:58
  #5 (permalink)  
20 Anniversary
 
Joined: Feb 2001
Posts: 461
Likes: 0
From: UK
Boeing have published a 41 page service letter detailing the recommended allowable dry ice carriage limits.

FAA advisory Circular AC No. 91-76 also refers.
Golden Rivet is offline  
Reply
Old 21st June 2011 | 05:55
  #6 (permalink)  
50 Countries Visited
15 Anniversary
 
Joined: Nov 2007
Aviation Qualifications: ATPL
Posts: 1,954
Likes: 30
From: Texas
How big is your airplane?

The AC is up to 91-76A
MarkerInbound is offline  
Reply
Old 21st June 2011 | 09:44
  #7 (permalink)  
50 Countries Visited
25 Anniversary
Veteran: Air Force
 
Joined: Dec 1999
Posts: 1,174
Likes: 123
From: uk
757 freighter, just under 3000kg, 767 freighter, just over 3000kg (both packs operable).
deltahotel is online now  
Reply
Old 21st June 2011 | 16:35
  #8 (permalink)  
20 Anniversary
 
Joined: Feb 2001
Posts: 461
Likes: 0
From: UK
ask your friendly engineer for the service letter....
Golden Rivet is offline  
Reply
Old 21st June 2011 | 17:17
  #9 (permalink)  

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. )
con-pilot is offline  
Reply
Old 22nd June 2011 | 18:51
  #10 (permalink)  
10 Anniversary
 
Joined: May 2011
Aviation Qualifications: LAME
Posts: 237
Likes: 7
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!
aeromech3 is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.