ISA Standards Meetings Calendar
- ISA67, Orlando, Fla., 7 October
- ISA75, Orlando, Fla., 7-8 October
- ISA96, Orlando, Fla., 8-9 October
- ISA112, Orlando, Fla., 8-9 October
- ISA84, Location TBD, 14-16 October
ANSI/ISA-96.08.01-2025 Published
ISA has published ANSI/ISA-96.08.01-2025, Guidelines for the Specification of Linear and Rotary Gas Over Oil Valve Actuators. The document offers comprehensive requirements for the design, selection, sizing, testing and documentation of gas over oil valve actuators used in industrial pipeline applications and covers both linear and rotary types with single- or double-acting designs. It is now available for viewing or purchase.
ANSI/ISA-75.08.03-2001 (R2025) and ANSI/ISA-75.08.04-2001 (R2025) Published
ISA has published ANSI/ISA-75.08.03-2001 (R2025), Face-to-Face Dimensions for Socket Weld-End and Screwed-End Globe-Style Control Valves (Classes 150, 300, 600, 900, 1500, and 2500). It covers valve sizes from 1/2 inch to 4 inches for socket weld ends and up to 2 1/2 inches for screwed ends. ISA has also published ANSI/ISA-75.08.04-2001 (R2025), Face-to-Face Dimensions for Buttweld-End Globe-Style Control Valves (Class 4500), which aims to provide uniform valve dimensional data to assist users in piping design without favoring any manufacturer. The documents are now available for viewing or purchase.
ANSI/ISA-67.04.01-2018 (R2025), Published
ISA has published ANSI/ISA-67.04.01-2018 (R2025), Setpoints for Nuclear Safety-Related Instrumentation. It is now available for viewing or purchase. This standard defines the requirements for assessing, establishing and maintaining nuclear safety-related and other instrument setpoints associated with nuclear power plants and nuclear reactor facilities.
ANSI/ISA-75.01.01-2012 (60534-2-1 MOD) Published
ISA has published a third printing of ANSI/ISA-75.01.01-2012 (60534-2-1 MOD), Industrial-Process Control Valves – Part 2-1: Flow capacity – Sizing equations for fluid flow under installed conditions. It is now available for purchase. The third printing makes corrections from the IEC 60534-2-1 ED2 corrigendum.
ANSI/ISA-95.00.01-2025 (IEC 62264-1 Mod) Published
ISA has published ANSI/ISA-95.00.01-2025 (IEC 62264-1 Mod), Enterprise-Control System Integration − Part 1: Models and Terminology, replacing the 2010 version. It is now available for viewing or purchase. This Part 1 standard provides a standard terminology and a consistent set of concepts and models for integrating control systems with enterprise systems that will improve communications between all parties involved.
ISA-RP75.23-1995 (R2024) Published
ISA has published ISA-RP75.23-1995 (R2024), Considerations for Evaluating Control Valve Cavitation. The recommended practice is now available for viewing or purchasing. This RP is intended for control valves used in the control of process fluids and is not intended to apply to fluid power components. The document supplies practical information and is broad in scope.
ANSI/ISA-62443-2-1-2024 Published
ISA has published ANSI/ISA-62443-2-1-2024, Security for industrial automation and control systems, Part 2-1: Security program requirements for IACS asset owners, replacing the original 2009 standard. The 2024 standard is now available for viewing or purchase. The standard is part of the ISA/IEC 62443 series that focuses on the issue of security for an industrial automation and control system (IACS) and is developed by the ISA99 standards committee in close collaboration with IEC TC65 WG10.
ANSI/ISA-62443-2-1-2024 describes the security program (SP) requirements for an IACS and provides guidance on how to meet each of these requirements. This update of the 2010 version provides significant technical changes including a revision of the requirement structure into security program elements and a maturity model for evaluating requirements.
ANSI/ISA-75.25.01-2024 and ISA-TR75.25.02-2024 Published
ANSI/ISA-75.25.01-2024, Test Procedure for Control Valve Response Measurement from Step Inputs, and ISA-TR75.25.02-2024, Control Valve Response Measurement from Step Inputs, have been published and are now available for viewing or purchase.
ANSI/ISA-75.25.01-2024 defines how to test, evaluate, and report the response of a control valve to a step input change and is intended for use with throttling control valves in closed or open loop control applications. The technical report ISA-TR75.25.02-2024 is a reference for the standard. It describes the characteristic response of a control valve to a step input signal.
ANSI/ISA-75.27.01-2024 Published
ANSI/ISA-75.27.01-2024, Cryogenic and Low Temperature Seat Leakage Testing of Control Valves, has been published and is available for viewing or purchase. This standard establishes a series of seat leakage classes and defines procedures for cryogenic and low temperature seat leakage production testing of sliding stem/linear motion control valves when required by the purchaser or user.
ISA-TR18.2.3-2024 Published
ISA-TR18.2.3-2024, Basic Alarm Design, has been published and is available for viewing or purchase. This technical report addresses alarm systems for facilities in the process industries to improve safety, quality and productivity. It is one of eight available technical reports to provide guidance on how to implement the practices outlined in ANSI/ISA-18.2-2016, Management of Alarm Systems for the Process Industries.
ANSI/ISA-96.03.02-2024 Published
ANSI/ISA-96.03.02-2024, Guidelines for the Specification of Pneumatic Rack and Pinion Valve Actuators, has been published and is available for viewing or purchase. This standard provides general requirements for the development of specifications for pneumatic rack and pinion actuators. This document applies to actuators with a maximum allowable operating pressure up to 145 psig (10 barg) with a compressed gas (e.g., instrument air).
ANSI/ISA-5.1-2024 and New Accompanying Technical Reports Published
ISA has published an updated version of the nationally and internationally recognized standard ANSI/ISA-5.1, Instrumentation and Control – Symbols and Identification. This standard establishes a uniform means of depicting and identifying instrumentation and control functions used for measurement, monitoring and control. It is now available for viewing or purchase.
This revision has significant changes to improve the readability of the document, including organizing notes with corresponding tables, providing definition consistency and clarification, adding new symbols, and adding normative references, abbreviations, a bibliography and the loop instrument diagrams symbol table.
Two new technical reports provide examples and information on applying requirements in the standard. The TRs—ISA-TR5.1.02, Instrumentation and Control – Identification System Guidelines, and ISA-TR5.1.03, Instrumentation and Control – Graphic Symbol Guidelines—are also now published and available for viewing or purchase. These TRs are expansions of the annexes in the previous version of the standard.
ANSI/ISA-75.10.01-2024, ANSI/ISA-75.10.02-2014 (R2024), and ANSI/ISA-75.10.03-2015 (R2024) Published
The following standards have been published and are available for viewing or purchase: ANSI/ISA-75.10.01-2024, General Requirements for Clamp or Pinch Valves, ANSI/ISA-75.10.02-2014 (R2024), Installed Face-to-Face Dimensions for Dual Pinch Flanged Clamp or Pinch Valves (Classes 125 and 150), and ANSI/ISA-75.10.03-2015 (R2024), Installed Face-to-Face Dimensions for Shell and Tube Flanged Pinch Valves (Classes 125 and 150).
ANSI/ISA-75.10.01-2024, General Requirements for Clamp or Pinch Valves, applies to valves, sizes NPS 1 (DN 25) through NPS 26 (DN 650), of the clamp or pinch valve design, incorporating clamp or pinch elements.
ANSI/ISA-75.10.02-2014 (R2024), Installed Face-to-Face Dimensions for Dual Pinch Flanged Clamp or Pinch Valves (Classes 125 and 150), applies to valves, sizes NPS ½ (DN 15) through NPS 26 (DN 650), of the clamp or pinch valve design, incorporating clamp or pinch elements and that have flanges that mate with ANSI B16.1 Class 125 and/or ANSI B16.5 Class 150 flanges.
ANSI/ISA-75.10.03-2015 (R2024), Installed Face-to-Face Dimensions for Shell and Tube Flanged Pinch Valves (Classes 125 and 150), applies to directly pneumatically operated pinch valves, sizes NPS ½ (DN 15) through NPS 24 (DN 600), of the shell and tube design, which have flanges that mate with ASME B16.1 Class 125 (PN20) and/or ASME B16.5 Class 150 (PN20) flanges. The document excludes solenoid-actuated valves, electric motor–operated valves, cylinder-operated valves, diaphragm-operated valves, pressure-reducing valves and manually operated (handwheel) valves. This document applies only to pinch valves of the shell and tube design.
ANSI/ISA-75.19.01-2024 Published
ANSI/ISA-75.19.01-2024, Hydrostatic Testing of Control Valves, has been published and is available for viewing or purchase. This standard applies to control valves having bodies, bonnets, cover plates and bottom flanges made of carbon steel, low alloy and high alloy (stainless) steel, nickel-base alloy, cast iron and ductile iron.
ISA-TR84.00.09-2024 Part 1 Published
ISA-TR84.00.09-2024 Part 1, Cybersecurity Related to the Safety Lifecycle, has been published and is available for viewing or purchase. The intent of this technical report is to address and provide guidance for the integration of cybersecurity into the safety lifecycle as it relates to process safety controls alarms and interlocks, inclusive of safety instrumented systems.
ANSI/ISA-96.02.01-2024 Published
ANSI/ISA-96.02.01-2024, Guidelines for the Specification of Electric Valve Actuators, has been published and is available for viewing or purchase. This standard covers the development of specifications, minimum design requirements and sizing criteria for electric actuators.
ANSI/ISA-18.1-2024 Published
ANSI/ISA-18.1-2024, Annunciator Sequences and Specifications, has been published and is available for viewing or purchase. This standard establishes uniform annunciator terminology, sequence designations and sequence presentation. This standard is intended to improve communications among those who specify, distribute, design, manufacture or use annunciators.
ISA-TR18.2.8-2023 Published
ISA-TR18.2.8-2023, Guidelines for Non-alarm Notifications, has been published and is available for viewing or purchase. This technical report defines notification types for non-operator roles, including alerts, prompts and notices, and provides recommendations and guidance for effective notifications. This technical report was written in support of the standard ANSI/ISA-18.2-2016, Management of Alarm Systems for the Process Industries.
New ISA99 Working Group on Workforce Security Competencies and Models
The widely used ISA/IEC 62443 Industrial Automation and Control Systems (IACS) Security standards, developed primarily by the ISA99 standards development committee with simultaneous review and adoption by the International Electrotechnical Commission/TC65 Working Group 10, provide a flexible framework to address and mitigate current and future IACS security vulnerabilities.
A newly established working group will extend the work of ISA99 by identifying, defining, and describing the competencies required of a specialized IACS cybersecurity workforce across primary (organizational) roles and professional (personnel) roles during all IACS security lifecycle phases. The working group will draft documents specifying competencies and training necessary for a workforce to reliably and safely design, develop, operate, maintain and decommission IACS security technology and security management programs as defined in the ISA/IEC 62443 series.
Control Centers Standards Committee Reactivates
ISA60, Control Centers, is seeking new members as it reactivates under the leadership of cochairs Donald Dunn and Ian Nimmo. The committee will work on writing and updating a series of recommended practices on topics that could include terminology, human engineering, seismic and other vibrations, modular construction, documentation and division of responsibilities, profiles, fabrication and finish, electrical wiring and sizing, graphic displays, inspection and testing and more. For information, contact ISA Standards.
ISA Standards: New Projects and Public Review
As part of its accreditation by the American National Standards Institute (ANSI), ISA must submit two types of official forms to ANSI to announce (a) the start of a standards project and (b) the public review of a draft standard in development. Please see ANSI Project Initiation or ANSI Public Review for the latest announcements of each and instructions on how to participate.
ISA-106.00.01-2023 Published
ANSI/ISA-106.00.01-2023, Procedure Automation for Continuous Process Operations, has been published and is available for viewing or purchase. This standard defines models, styles, strategies, philosophies and the lifecycle for automation of procedures in the continuous process industries. It builds on these previous ISA technical reports by the ISA106 standards committee: ISA-TR106.00.01, Procedure Automation for Continuous Process Operations – Models and Terminology and ISA-TR106.00.02-2017, Procedure Automation for Continuous Process Operations – Work Processes.
ISA-TR5.9-2023 Published
ISA-TR5.9-2023, Proportional-Integral-Derivative (PID) Algorithms and Performance, has been published and is available for viewing or purchase. This ISA technical report documents common PID algorithms used in industrial control systems, including the various algorithms’ implementation methods, options and performance measurements.