safety integrity level


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safety integrity level

A measurement of the effectiveness of safety systems based on the probability of tolerable incidents that can occur within a number of processing demands. For example, SIL level 4 means that for every 10,000 demands on the system, there could be one incident. See safety instrumented system.


Probability Categories
SIL From To

1 1 in 10 1 in 100
2 1 in 100 1 in 1,000
3 1 in 1,000 1 in 10,000
4 1 in 10,000 1 in 100,000
References in periodicals archive ?
A Safety Integrity Level is a statistical representation of the reliability of a Safety Instrumented System (SIS) when a process demand occurs.
As an open standard, the safety protocol is designed for use in safety applications up to Safety Integrity Level (SIL) 3 according to the IEC 61508 standard.
As a 2014 National Instruments white paper (6) about ISO 26262 states, "The Automotive Safety Integrity Level (ASIL) .
Express Logic's NetX Duo Safety Manual documents these quality assurance measures, which enable developers to use NetX Duo in safety-critical software development for even the most rigorous Safety Integrity Level (SIL 4) and Automotive Safety Integrity Level (ASIL D), according to IEC 61508, IEC 62304, ISO 26262, and EN 50128, without further qualification.
Capable of capturing 1080p high dynamic range (HDR) video, the AR0231AT also includes features that support Automotive Safety Integrity Level B (ASIL B).
Safety integrity level survey MAF refinery Tender no: 9900005544 Description: Safety integrity level survey MAF refinery.
It is also certified to Safety Integrity Level (SIL) 3 of IEC 6150, and Performance Level e (PLe), Category 3 of ISO 13849-1, the highest levels achievable for drives.
This being achieved through a rigorous formal assessment process and demonstrating compliance with relevant TSI and EN norms to the highest Safety Integrity Level 4.
The PSR-FSP/2x1 can be used in applications up to a Safety Integrity Level (SIL) 3, and the PSR-FSP2/2x1 can be used for up to a SIL 2 requirement, according to IEC 61508.
This process safety relay can be used in applications up to a Safety Integrity Level (SIL) 3 requirement, according to IEC 61508.
8 million deal to design and develop a major integrated Safety Integrity Level 3 (SIL 3) and process control solution for a gas pipeline project in Dukhan, Qatar.
Part of the BuiltSAFE Graphics Suite, the Multi-Core Renderer runs on the multi-core ARM Cortex A53 processor inside the MPSoC and is certifiable to DO-178C at the highest design assurance level (DAL-A) as well as the highest Automotive Safety Integrity Level (ASIL D).