What is Un approval for chemical containers?
There is a universal system in place for the transportation of dangerous goods. It was established by the United Nations and covers the classification, packaging and labelling of products for travel by any means including road, rail, sea and air transport.
Once a specimen of a package is tested and approved then any further packages that are manufactured to the same specification can be regarded as meeting the standard and marked up accordingly.The series of letters and numbers in the markings relate to the following: