ABC Chemicals is a medium-sized chemical distributor located at the rear of a large metropolitan shopping precinct. ABC Chemicals purchase large quantities of cleaning chemicals. These are delivered in 205 litre drums and include solvents, acids and other corrosives, and detergents. These products are decanted by ABC Chemicals' workers into retail size containers (not exceeding 30 litres/ kilograms), re labelled and shipped in company-badged delivery vehicles to retail outlets throughout the metropolitan area.