User:Milton Beychok/Sandbox

Risk Ranking Matrix

Severity	Liklihood
	Frequent	Probable	Occasional	Remote
Major	Unacceptable	Unacceptable	Unacceptable	High
Moderate	Unacceptable	High	High	Medium
Small	High	Medium	Low	Low
Insignificant	Medium	Low	Low	low
Frequent = Once or more per year Probable = Between once or more per year and once per 10 years Occasional = Between once per 10 years and once per 30 years Remote = less than once per 30 years

Definitions

Term	Definition
Hazard	A source, situation, event, circumstance or condition with the potential to cause harm, including ill health, injury or death, production losses, or damage to the environment.
Study nodes (or process sections)	Section of the process equipment with definite boundaries (for example, the piping from a process vessel to a pump) within which process parameters are investigated to determine the effect of deviationss from the design intention.
Process parameter	A physical or chemical property involved in a study node, including items such as temperature, pressure, pH, concentration, reaction.
Deviation	Departures from the design intention that are discovered by systematically applying the pertinent guide words applicable for each study node.

(PD) Diagram: Milton Beychok