Hazards associated with dry ice:
(1) asphyxiation (if too much carbon dioxide is released into a confined space)
(2) explosion (if a package is sealed too tight, allowing gas pressure to build)
(3) cold injury (if it comes into contact with bare skin)
Failures in shipping with dry ice:
(1) using too much (limit is 200 kg per package for shipping by air)
(2) using too little
(3) having a container that is sealed to tight (not properly vented to allow release of gas)
(4) handling dry ice with bare skin
(5) placing in a confined space without adequate ventilation
(6) not being trained in its use
(7) not filling out shipping papers (waybill) properly
(8) not labeling the container properly
(9) shipping undeclared hazardous materials (biohazards, chemical hazards, etc)
(10) using an improper shipping container without adequate insulation
(11) exposing the container to excessive heat
(12) delayed transport
