Final answer:
Out of the given options, a 4-litre can of water would be the item exempt from requiring a supplier label and a Material Safety Data Sheet (MSDS), as it is not considered a hazardous substance under normal conditions.
Step-by-step explanation:
Within the context of chemical handling and workplace safety, supplier labels and Material Safety Data Sheets (MSDS), which are now referred to as Safety Data Sheets (SDS) under the Globally Harmonized System (GHS), are required for hazardous chemicals. These documents provide important information regarding the chemical including its hazards and precautions for handling. Among the options provided:
- A 5-gallon container of bleach would require a label and MSDS/SDS due to the presence of sodium hypochlorite, a hazardous substance.
- A 55-gallon drum of nitric acid certainly requires a label and its respective MSDS/SDS because it is a highly corrosive and hazardous material.
- A 4-litre tin of paint would require a label and MSDS/SDS because paints typically contain hazardous chemicals that can pose health risks.
- A 4-litre can of water, however, would typically be exempt from these requirements as it is not considered a hazardous substance under normal conditions.
Hence, the item exempt from a supplier label and a MSDS is a 4-litre can of water.