Process Systems Risk Management

| AEA | Action Error Analysis |
| AIChE | American Institute of Chemical Engineers |
| AIHA | American Industrial Hygiene Association |
| AQ | Airborne Quantity kg/s |
| ARIP | Accident Release Information Program |
| BLEVE | Boiling Liquid Expanding Vapour Explosion |
| CCPS | Center for Chemical Process Safety (AIChE) |
| CEI | Dow Chemical Exposure Index |
| CHA | Concept Hazard Analysis |
| CHAZOP | Computer Hazard and Operability Study |
| CO | Carbon monoxide |
| ERPG | Emergency Response Planning Guideline, mg/m 3 |
| ESD | Emergency Shutdown |
| EtO | Ethylene Oxide |
| EU | European Union |
| F&EI | Dow Fire and Explosion Index |
| FMEA | Failure Mode and Effects Analysis |
| FMECA | Failure Mode Effects and Criticality Analysis |
| H 2 | Hydrogen |
| HAZID | Hazard Identification |
| HAZOP | Hazard and Operability study |
| HCR | Hydrocarbon Releases |
| I/O | Input/Output (digital hardware) |
| IChemE | Institution of Chemical Engineers (UK) |
| kg | kilogram |
| kPag | kilo Pascals gauge |
| LAH | Level Alarm High |
| LAHH | Level Alarm High High |
| LI | Level Indicator (gauge) |
| LS | Level Switch |
| MAHB | Major Accident Hazards Bureau |
| MARS | Major Accident Reporting System |
| MHIDAS | Major Hazard Incident data System |
| MSDS | Material Safety Data Sheet |
| NH 3 | Anhydrous ammonia |
| OSHA | Occupational Health and Safety Administration (USA) |
| P&ID | Piping & Instrumentation Diagram |
| PES | Programmable Electronic System |
| PPE | Personal Protection System |
| ppm | Parts per million |
| PSV | Pressure Safety Valve |
| QA | Quality Assurance |
| SADIE | Safety Alert Database and Information Exchange |
| SIS | Safety Instrumented System |
| SMS | Safety Management System |
| SO 3 | Sulphur trioxide |
| TLV | Threshold Limit Value |
| UK | United Kingdom |
| UK HSE | UK Health and Safety Executive |
| UN | United Nations |
| US EPA | United States Environment Protection Agency |
| VCE | Vapour Cloud Explosion |