Industry Acronyms Defined
Just so we’re all talking about the same thing, only faster.
This site uses the following acronyms common to process safety:
BPCS: Basic Process Control System
IEC: International Electrotechnical Commission
IPL: Independent Layer of Protection
ISA: International Society of Automation, formerly the Instrument Society of America
LOPA: Layer of Protection Analysis
OCA: Offsite Consequence Analysis
PFD: Process Flow Diagram
PFDAVG: Average Probability of Failure on Demand
PHA: Process Hazard Analysis
P&ID: Piping and Instrument Diagram
PSM: Process Safety Management
PSSR: Pre-Startup Safety Review
QRA: Quantitative Risk Analysis
RMP: Risk Management Planning
RTC: Risk Tolerance Criteria
SIL: Safety Integrity Level
SIS: Safety Instrumented System
SIF: Safety Instrumented Function
SRS: Safety Requirements Specification
As time goes by, as life spans increase, society’s expectations will increase. Individuals and organizations must get safer with time to keep up with or ahead of these expectations.
OSHA’s position on ANSI/ISA 84.00.01-2004
OSHA’s position on ANSI/ISA 84.01-1996
OSHA’s PSM Standard (29 CFR 1910.119)
OSHA’s PSM Standard Compliance Guidelines
Frequently asked questions about RMP
Additional RMP Program Guidance
RMP Guidance for Offsite Consequence Analysis
Center for Chemical Process Safety
CCPS Introduction to Inherently Safer Design
CCPS Process Safety Beacon newsletter
Mary Kay O’Connor Process Safety Center
Free read only access to all NFPA Standards
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