Risk assessment abbreviations

Abbreviation	Full Name	Process Description
AFD	approved for design	Approved for design. This term indicates that the design documentation has passed all necessary checks and approvals.
ALARP	as low as reasonably practicable	As low as reasonably practicable. The ALARP principle is applied to minimize risks to an acceptable level.
API	American Petroleum Institute	American Petroleum Institute. An organization that sets standards in the petroleum industry.
BDV	blow-down valve	Blow-down valve. A device for safely reducing pressure in equipment.
BLEVE	boiling liquid expanding vapour explosion	Boiling liquid expanding vapor explosion. A dangerous phenomenon requiring special safety measures.
C&I	control and instrumentation (function)	Control and instrumentation. Functions related to controlling and monitoring various parameters in the process.
CED	cause and effects diagram	Cause and effects diagram. A method for visualizing cause-and-effect relationships.
CV	control valve	Control valve. A device for controlling the flow of liquid or gas.
CW	cooling water	Cooling water. An important element of cooling systems in industry.
DCS	distributed control system	Distributed control system. A system for automation and control of production processes.
ESD	emergency shut-down	Emergency shutdown procedures.
ETTO	efficiency thoroughness trade-off	Balancing efficiency and thoroughness in processes.
FI(C)A	flow indicator (controller) and alarm	Monitoring and alarm system for flow indicators.
FT	flow transmitter	Process of transmitting flow data.
F(C)V	flow (control) valve	Control and regulation of flow valves.
HAZAN	hazard analysis	Process of hazard analysis.
HAZID	hazard identification (study)	Procedure for identifying potential hazards.
HAZOP	hazard and operability study	Study and analysis of hazards and operability.
HSE	Health, Safety & Environment (also UK Health & Safety Executive)	Health, safety and environmental protection processes.
HX	heat exchanger	Operation and maintenance of heat exchangers.
IEC	International Electrotechnical Commission	Standardization process by the International Electrotechnical Commission.
IEEI	inform excite empower involve	Engagement and empowerment of stakeholders.
IPE	independent process engineer	Functions of an independent process engineer.
ISO	International Standards Organisation	Standardization process by the International Organization for Standardization.
LAH	level alarm high	High level alarm monitoring system.
LAL	level alarm low	Low level alarm monitoring system.
LI(C)A	level indicator (controller) and alarm	Level indication and control and alarm system.
LT	level transmitter	Process of transmitting level measurement data.
LOPA	layers of protection analysis	Analysis of protection layers in safety systems.
MOC	management of change	Change management procedures.
MOV	motor-operated valve	Operation of motor-operated valves.
MPI	main plant item	Identification of main plant items.
MSDS	material safety data sheet	Process of documenting material safety.
NFPA	(US) National Fire Protection Association	Standards and procedures of the National Fire Protection Association.
NRV	nonreturn valve	Operation of non-return valves.
P1, etc.	pump 1, etc.	Identification and control of pumps.
P&ID	piping and instrumentation diagram	Creation of piping and instrumentation diagrams.
P(C)V	pressure (control) valve	Control and regulation of pressure valves.
PES	programmable electronic system	Operation of programmable electronic systems.
PFD	process flow diagram	Creation of process flow diagrams.
PHA	process hazards analysis	Process hazards analysis.
PI(C)A	pressure indicator (controller) and alarm	Pressure indication and control and alarm system.
PICA	pressure indicator controller and alarm	Functions of pressure indication controllers and alarms.
PLC	programmable logic controller	Operation of programmable logic controllers.
PPSE	professional process safety engineer	Roles of professional process safety engineers.
PRV	pressure relief valve	Functions of pressure relief valves.
PSH	pressure switch high	Monitoring of high pressure switches.
PSV	pressure safety valve	Operation of pressure safety valves.
PSI	process safety information	Management of process safety information.
PSMS	process safety management system	Operation of process safety management systems.
PT	pressure transmitter	Process of transmitting pressure measurement data.
QA	quality assurance	Quality assurance processes.
RGP	recognised good practice	Implementation of recognized good practices.
RR	risk ranking	Risk ranking and prioritization.
SMART	specific measurable achievable realistic timebound	Setting specific, measurable, achievable, realistic and time-bound goals.
SOP	standard operating procedure	Standard operating procedures.
S/U, S/D	start-up, shut-down	Start-up and shutdown processes.
SWIFT	structured what if? technique	Structured "what if?" analysis.
TA	temperature alarm	Temperature monitoring and alarm system.
T(C)V	temperature (control) valve	Control and regulation of temperature valves.
TIA	temperature indicator alarm	Temperature signal indication system.
TIC(A)	temperature indicator controller (and alarm)	Functions of temperature indication controllers and alarms.
TP	tie-in point	Identification of tie-in points.
ToR	terms of reference	Establishment of terms of reference.
TT	temperature transmitter	Process of transmitting temperature measurement data.
V1, etc.	valve 1, etc.	Identification and control of valves.
VCE	vapour cloud explosion	Handling of vapor cloud explosions.
WWWS	what where why standalone	Analysis of "what, where, why" scenarios.
XCV	high pressure control valve	Control and regulation of high pressure valves.

This table contains a list of abbreviations used in the professional field, their definitions and brief process descriptions. It is structured as follows:

• Abbreviation: Short designation of the term.
• Full Name (Definition): Brief explanation or expansion of the abbreviation.
• Process Description: Detailed description of processes or concepts related to the abbreviation.

Purpose of the table:

• Terminology unification: The table ensures uniform use of terms and their abbreviations in professional documents and communication.
• Training and reference: Serves as a useful tool for new employees and specialists learning in this field, helping them master professional vocabulary faster.
• Improving accuracy and understanding: Contributes to more accurate understanding and use of terms, which is important for correct task and project execution.