Single-source design intent and basis of safety documentation
Design intent and basis of safety documentation capture the safety logic of design decisions — from inherent measures through preventive and mitigative safeguards. These documents anchor MOC, audits, and competent operator handover.
Define Design Intent / Basis of Safety scope per project phase — concept / FEED / detailed engineering / commissioning; align with CCPS Guidelines for Engineering Design for Process Safety and OSHA PSM 1910.119(d) Process Safety Information.
Document material inventory (flammable, toxic, reactive, cryogenic) and energy inventory (mechanical, thermal, pressure, kinetic) per unit; align with safety data sheets, MOC review, and PHA inputs; specify segregation and quantity-limit philosophy.
Specify operating envelope per equipment / unit — pressure / temperature / flow / composition / inventory bounds; define IOW per API RP 584 (critical, standard, informational); align with relief / vent / SIS / alarm setpoints.
Specify containment philosophy — primary (pressure boundary), secondary (bund, blast wall, dike), tertiary (impoundment, emergency containment); specify energy-release philosophy — relief, depressurisation, deluge, suppression.
Conduct multi-stage Safety-in-Design (SiD) reviews — concept (HAZID, Bow-Tie), FEED (HAZOP, SIL allocation), detailed (HAZOP revalidation, SIL verification); integrate with MOC and PHA assumption set; align with CCPS Inherently Safer Design.
Compile Design Basis Manual covering material / energy inventory, operating envelope, containment philosophy, SiD review outputs; integrate with PSI / PSM documentation; align with operator handover and post-startup PHA revalidation.
Complete Design Intent & Basis of Safety Development scope — every calculation, drawing, specification, and construction support activity.
Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.