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Responsible Care Process Safety Code

Understanding Hazards and Risks

Identification of material, process, and facility hazards with risk quantified at the depth each one deserves

Strategic context

What this element is and why it matters

Understanding Hazards and Risks is the analytical foundation of Responsible Care. It is the structured identification and quantification of process hazards across the material, process, and facility dimensions. The element brings together chemical safety evaluation such as differential scanning calorimetry, accelerating rate calorimetry, and dust explosibility, process hazard analysis such as HAZOP, LOPA, SIL determination, and quantitative risk assessment, facility siting under API RP 752 and 753, and the cumulative risk mapping that supports corporate ESG and ICCA peer survey reporting. Our team builds this understanding so it is deep and defensible.

Understanding Hazards and Risks

Individual significance for organisations

Organisations that invest in deep and defensible hazard understanding catch the patterns that drive major accidents. Bhopal, Texas City, Buncefield, and Tianjin all involved hazards that had been identified yet the organisation chose not to act on them. Beyond compliance, mature hazard understanding becomes a real competitive asset that informs technology selection, due diligence in mergers and acquisitions, dialogue with insurers, and capital allocation, and we help your team turn it into exactly that.

Contribution to Responsible Care Process Safety Code

This element converts the leadership commitment of Element 1 into actionable risk knowledge that drives Managing Risk in Element 3. Its outputs feed Learning from Experience in Element 4 through the baseline risk register, and the discipline established here carries into Implementation in Element 5 through the quality of the hazard analysis, the rigour of safety integrity level allocation, and the standards for chemical safety evaluation.

Key requirements

What compliant execution looks like

Material hazard characterisation by chemistry covering flammability, reactivity, toxicity, and dust
Process hazard analysis under IEC 61882 and the CCPS Guidelines including HAZOP, LOPA, SIL, and quantitative risk assessment
Facility siting under API RP 752, 753, and 756 for occupied buildings
Fire and explosion risk analysis and consequence modelling with PHAST and FLACS for major accident hazards
Cumulative risk mapping across the portfolio for ICCA peer comparison
A risk register with revalidation triggers and a five year statutory cycle
Implementation methodology

How we implement this element

A focused six step methodology calibrated to deliver understanding hazards and risks as a working capability rather than a documented compliance artefact.

Material Hazard Characterisation

We run chemical safety evaluation for the applicable scenarios using differential scanning calorimetry, accelerating rate calorimetry, and dust explosibility testing for the deflagration index, maximum pressure, minimum ignition energy, and limiting oxygen concentration under NFPA 660, reactivity assessed against CHETAH and Bretherick, and toxicity assessed against OECD.

Process Hazard Analysis Programme

We run IEC 61882 HAZOP at detailed engineering, CCPS LOPA for independent protection layer credit, and IEC 61511 safety integrity level allocation, supplemented by FMEA and What If as the complexity of the process demands.

Facility Siting and Building Risk Studies

We conduct API RP 752 occupied building risk assessment, API RP 753 portable building work, and API RP 756 tent assessment to quantify the blast, thermal, and toxic exposure of personnel buildings to credible worst case scenarios.

Consequence Modelling

We model with PHAST, FLACS, DEGADIS, and SAFETI for vapour cloud explosion, boiling liquid expanding vapour explosion, pool fire, jet fire, and toxic dispersion and align it with the EPA RMP and Seveso definition of the credible worst case.

Cumulative Risk Mapping

We aggregate risk at the portfolio level using individual risk per annum, frequency and number curves, and the potential loss of life for each site and integrate it with the corporate ESG risk register and ICCA peer survey reporting.

Risk Register and Revalidation

We maintain a live risk register with partial revalidation triggered by change and a five year statutory cycle and align it with the API RP 754 process safety event indicator framework.

Implementation flow

Element implementation flow chart

A decision gated workflow that shows the actual sequence of activities from initiation through steady state operation, with key decision points highlighted.

Start
Element 1 leadership commits to the hazard understanding programme
Material Hazard Inventory
All chemicals catalogued with their hazard properties
Test Programme Design
Calorimetry, dust explosibility, and flammability for the applicable scenarios
Hazard Analysis Programme
HAZOP, LOPA, and safety integrity across the IEC 61882, CCPS, and IEC 61511 lifecycle
Decision
Major Accident Hazard?
Decision gate based on scenario severity
Fire and Explosion Modelling
PHAST and FLACS for vapour cloud explosion, BLEVE, and toxic dispersion
Facility Siting Study
API RP 752 occupied building risk and portable building risk
Risk Quantification
Individual risk per annum, frequency and number curves, and potential loss of life
Risk Register Updated
A live register with action ownership and close out
Five Year Revalidation Calendar
Statutory cycle with partial revalidation triggered by change
Deliverables

What we produce

  • A material hazard characterisation database
  • Hazard analysis workbooks covering HAZOP, LOPA, and safety integrity for each process
  • A facility siting study under API RP 752, 753, and 756
  • Fire and explosion consequence modelling outputs
  • A cumulative risk register with portfolio aggregation
  • A five year revalidation calendar with change triggers
Common pitfalls

Where execution fails

  • Hazard analysis quality compromised by a missing operator perspective
  • Consequence modelling done with outdated process safety information inputs
  • Facility siting studies skipped for older brownfield sites
  • A risk register that is never connected to the ICCA and API RP 754 reporting
Standards & references

Codes this element is built on

IEC 61882 (HAZOP Studies)CCPS Guidelines for Hazard Evaluation Procedures (3rd Edition)API RP 752, 753, and 756 (Facility Siting and Building Risk)CCPS LOPA Guidelines (3rd Edition 2014)IEC 61511 (Safety Integrity Level Allocation)NFPA 660 (Dust Hazards), OSHA 29 CFR 1910.119, and MSIHC Rules 1989
All elements in this framework

Responsible Care Process Safety Code full element index

Implement this element

Talk to us about implementing Understanding Hazards and Risks

We can scope this element implementation against your facility, regulatory context, and existing management system maturity, then integrate it with the other Responsible Care Process Safety Code elements you already operate.