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safety function

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  • Safety Integrity Level — (SIL) is defined as a relative level of risk reduction provided by a safety function, or to specify a target level of risk reduction. In simple terms, SIL is a measurement of performance required for a Safety Instrumented Function (SIF).Four SIL… …   Wikipedia

  • Safety — is the state of being safe (from French sauf ), the condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences of failure, damage,… …   Wikipedia

  • Safety engineering — is an applied science strongly related to systems engineering and the subset System Safety Engineering. Safety engineering assures that a life critical system behaves as needed even when pieces fail.In the real world the term safety engineering… …   Wikipedia

  • Safety wire — Safety wiring of two pairs of drilled head bolts Safety wire or lockwire is common in the aircraft and racing industries as an extra precaution to keep vital fasteners from unintentionally loosening and parts from falling off due to vibration or… …   Wikipedia

  • Safety (firearms) — This article is about the mechanical safety devices built into most firearms. For the main article about firearm safety education, see Gun safety. Close up shot of a safety of an M16A2 rifle. In firearms, a safety or safety catch is a mechanism… …   Wikipedia

  • Safety-First Rule — Within the context of post modern and modern portfolio theory, a safety first rule involves creating a portfolio based on a minimum level of portfolio returns, which is called the minimum acceptable return. By setting up a minimum acceptable… …   Investment dictionary

  • Safety valve — A safety valve is a valve mechanism for the automatic release of a gas from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set named pressure safety valves (PSV) or… …   Wikipedia

  • Safety of emergency medical services flights — The safety of emergency medical services flights has become a topic of public interest in the United States, with the expansion of emergency medical services aviation operations, such as air ambulance and MEDEVAC, and the increasing frequency of… …   Wikipedia

  • Safety instrumented system — A Safety Instrumented System (SIS) is a form of process control usually implemented in industrial processes, such as those of a factory or an oil refinery. The SIS performs specified functions to achieve or maintain a safe state of the process… …   Wikipedia

  • Function composition (computer science) — In computer science, function composition (not to be confused with object composition) is an act or mechanism to combine simple functions to build more complicated ones. Like the usual composition of functions in mathematics, the result of the… …   Wikipedia

  • Function (engineering) — In engineering, in psychology, as well as in common parlance, function denotes the property of something which is used/applied for an objective/goal/purpose/scope.In fact, it is possible to realize the same function using different physical… …   Wikipedia

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