Transcription of CONTRACT RESEARCH REPORT 428/2002 - HSE: …
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HSEH ealth & SafetyExecutivePrinciples for proof testing of safety instrumented systems in the chemical industryPrepared by ABB Ltdfor the Health and Safety ExecutiveCONTRACT RESEARCH REPORT428/2002 HSEH ealth & SafetyExecutivePrinciples for proof testing of safety instrumented systems in the chemical industryStuart NunnsBSc, C Eng, FIEE, FInstMCABB LtdPavillion 9 Byland WayBelasis Hall Technology ParkBillinghamCleveland TS23 4 YSGuiding principles for the proof testing of safety instrumented systems (SIS) in the chemical industryhave been developed through RESEARCH into the practices of proof testing. The proof testing of SIS is anintegral component of the management of functional safety. Its purpose is to confirm the continuedoperation of the required safety instrumented function and to contribute to the maintenance of therequired safety integrity level of the safety guiding principles were developed through direct contact with industrial end-users and suppliers ofSIS components, and through searches of incident data available within the public has been given to goo
iii contents executive summary iv 1. introduction 1 2. research method 2 3. presentation of results 4 4. guiding principles 5 4.1 proof test practices 5
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