To determine the minimum drum marking for the product you are shipping you must, at a minimum, know the following information about the hazardous material:
First, determine the Packing Group of the material. Hazardous materials are categorized in Packing Groups ranging from I – III, with I being the most hazardous. For solids, drums are authorized to carry a specific gross mass in kilograms (Kg), so you must know the mass (i.e., the weight of the material) you will be shipping. To ship liquids you must know the vapor pressure at either 50 or 55 degrees Celsius and the specific gravity.
The worksheet below may assist you in determining the marking you require.