Our Safety Guru says ...
Dangerous substances present a variety of physical and chemical hazards. They are classified according to the nature of the hazard they present by placement in one of 9 Classes, based on the United Nations Recommendations. Where the dangerous substance has a hazard of more than one Class, it may be given a Class and a subsidiary risk. Dangerous substances of Classes 3, 4, 5, 6.1 and 8 have been assigned to one of three categories (Packaging Groups) according to the degree of danger they present, ie.
Dangerous substances present a variety of physical and chemical hazards. They are classified according to the nature of the hazard they present by placement in one of 9 Classes, based on the United Nations Recommendations. Where the dangerous substance has a hazard of more than one Class, it may be given a Class and a subsidiary risk. Dangerous substances of Classes 3, 4, 5, 6.1 and 8 have been assigned to one of three categories (Packaging Groups) according to the degree of danger they present, ie.