Machine and Unit States: An Implementation Example of ANSI/ISA-88.00.01
standard by The International Society of Automation, 10/26/2015

Electrical Apparatus for Use in Class I, Zone 1 Hazardous (Classified) Locations: Type of Protection – Encapsulation “m”
standard by The International Society of Automation, 07/31/2009

Security for industrial automation and control systems, Part 2-4: Security program requirements for IACS service providers (IEC 62443-2-4:2015+AMD1:2017 CSV, IDT)
standard by The International Society of Automation, 07/13/2018

Performance Requirements for Combustible Gas Detectors
standard by The International Society of Automation, 01/01/2002

Control Valve Capacity Test Procedure
standard by The International Society of Automation, 04/21/2009

Alarm System Monitoring, Assessment, and Auditing
standard by The International Society of Automation, 10/26/2012

Explosive Atmospheres – Part 10-2: Classification of Areas – Combustible Dust Atmospheres
standard by The International Society of Automation, 09/13/2013

Electrical Apparatus for Use in Zone 20, Zone 21 and Zone 22 Hazardous (Classified) Locations – General Requirements
standard by The International Society of Automation, 09/20/2006

Functional Safety – Safety Instrumented Systems for the Process Industry Sector – Part 3: Guidance for the determination of the required safety integrity levels (IEC 61511-3:2016, IDT)
standard by The International Society of Automation, 07/11/2018

Recommended Practice for Classifications of Locations for Electrical Installations Classified as Class I Zone 0, Zone 1, or Zone 2
standard by The International Society of Automation, 04/01/1998