A discussion of these methods of analysis is contained in the
companion publication, OSHA 3133, Process Safety Management -
Guidelines for Compliance. Whichever method(s) are used, the
process hazard analysis must address the following:
• The hazards of the process;
• The identification of any previous incident that had a potential
for catastrophic consequences in the workplace;
• Engineering and administrative controls applicable to the
hazards and their interrelationships, such as appropriate application
of detection methodologies to provide early warning of
releases. Acceptable detection methods might include process
monitoring and control instrumentation with alarms, and
detection hardware such as hydrocarbon sensors;
• Consequences of failure of engineering and administrative
controls;
• Facility siting;
• Human factors; and
• A qualitative evaluation of a range of the possible safety and
health effects on employees in the workplace if there is a failure
of controls.