By Little Pro on 2016-01-07 Views: Update:2017-01-18
Packages and containers for dangerous goods must pass rigorous performance testing prior to use and bear UN specification marks. Such packages are called UN approved packages or UN certified packages. There will be UN specification markings on UN certified packages (starting with UN).
Package identification code is used to describe the type of UN approved package and materials used. You can easily find out what 4G or 1A1 mean by referring to the table below: