In evaluating risk, what key considerations are taken to measure a factor and how is this determined?

In general, to do an assessment, you should:

• Identify hazards.
• Evaluate the likelihood of an injury or illness occurring, and its severity.
• Consider normal operational situations as well as non-standard events such as shutdowns, power outages, emergencies, etc.
• Review all available health and safety information about the hazard such as MSDSs, manufacturers literature, information from reputable organizations, results of testing, etc.
• Identify actions necessary to eliminate or control the risk.
• Monitor and evaluate to confirm the risk is controlled.
• Keep any documentation or records that may be necessary. Documentation may include detailing the process used to assess the risk, outlining any evaluations, or detailing how conclusions were made.

When doing an assessment, you must take into account:

• The methods and procedures used in the processing, use, handling or storage of the substance, etc.
• The actual and the potential exposure of workers.
• The measures and procedures necessary to control such exposure by means of engineering controls, work practices, and hygiene practices and facilities.