We offer research, consulting, and auditing services for the definition, design, and validation of Safety Instrumented Functions (SIFs). We are recognized as experts in the application of functional safety principles derived from the IEC 61508 standard across all industrial sectors, including, in particular, the process industry (IEC 61511) and the machinery sector (ISO 13849 and IEC 62061). We support SIS manufacturers and integrators throughout the entire lifecycle of Safety Instrumented Functions (SIFs) and Safety Instrumented Systems (SISs) to address safety challenges related to people, the environment, and property.
Our offering
Hazard and risk analysis
Preliminary risk analyses (PRA, HAZID)
Process risk analyses
Prevention/protection barrier analysis (LOPA method)
Definition of Instrumented Safety Functions
Definition of required SIL levels
Definition of safety requirement specifications
Evaluation of the SIL level achieved by SIFs
Consideration of architectural constraints
Calculation of failure probabilities PFDavg / PFH
Assessment against the required SIL and, if applicable, technical and/or organizational recommendations to achieve the required SILs
Independent audit of the functional safety management system
Support for manufacturers in ensuring their products comply with the requirements of IEC 61508
Support for manufacturers in the application of IEC 61511 / ISO 13849 / IEC 62061 standards
Training of personnel on functional safety standards (IEC 61508, IEC 61511, Machinery Directive, and associated standards ISO 13849 and IEC 62061) and the Quali-SIL framework
Our strengths
Experience and expertise in functional safety
Several significant references obtained from key industry players
ISO Ingénierie is a member of the Quali-SIL steering committee in partnership with INERIS
Expertise in software tools for functional safety assessment (GRIF, exSILentia, SISTEMA…)