SC 65B - Measurement and control devices

IEC 61514:2026 specifies tests designed to determine the static and dynamic performance of single-acting or double-acting analogue positioners. The tests apply to positioners which receive standard analogue input signals (as specified in IEC 60381-1, IEC 60381-2 and IEC 60382) and have a pneumatic output. Positioners with pulsed or digital input signals, positioners with digital controllers and positioners with pulsed outputs are outside the scope of this document. Testing is conducted either on a positioner alone, independently of an actuator, or on a positioner mounted and connected to a specific actuator, as a combined unit. The text makes clear where different approaches are required. The methods of evaluation given in this document are intended for use by manufacturers to determine the performance of their products, and by users, or independent testing establishments, to verify manufacturers' performance specifications. The closest liaison between the evaluating body and the manufacturer is indispensable during the tests, including the possibility for the manufacturer to influence the test programme based on the manufacturer's specifications for the instrument and comment on both the test programme and the results. This document is intended to provide definitions of positioner elements, actions, and characteristics, to specify uniform methods of measuring performance errors and effects of influence quantities on those characteristics, and to describe methods of reporting and evaluating the results of the measurement data obtained. The test conditions described in this publication (for example range of ambient temperatures and power supply) relate to conditions which commonly arise in use. Consequently, the values specified are used where no other values are specified by the manufacturer or user. If other values are used, they will be stated. It is recognized that the manufacturer's specifications and instructions for installation and operation apply during all steps. The tests specified in this document are not necessarily sufficient for instruments specifically designed for unusually arduous conditions. Conversely, a reduced series of tests can serve adequately for instruments designed to perform within a more limited range of conditions. When a full evaluation, in accordance with this document, is not required or possible, only the tests which are required are performed and the results reported in accordance with the relevant parts of this document. In such cases, the test report will state that it does not cover the full number of tests specified herein. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) in 6.6.8 and Table 5, the magnetic field has been changed from 100 A/m to of 30 A/m (Mean Root Square);
b) 6.10.4 and Figure 9 have been modified for better understandability;
c) in 7.4, the reference to IEC 61187 has been deleted and replaced with a new Table 4: Document information.

IEC 61298-1:2026 specifies general methods and procedures for conducting tests and reporting on the functional and performance characteristics of process instrumentation except process measurement transmitters (PMT) which are standardized by the IEC 62828 series. The tests are applicable to any such devices characterized by their own specific input and output variables, and by the specific relationship (transfer function) between the inputs and outputs and include analogue and digital devices. For devices that require special tests, this document can be used together with any product specific standard specifying special tests. This document covers general principles which apply to the IEC 61298 series.
This third edition cancels and replaces the second edition published in 2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Process measurement transmitters (PMT) have been removed from the scope of this standard.

IEC 61298-2:2026 specifies general methods and procedures for conducting tests and reporting on the functional and performance characteristics of process instrumentation except process measurement transmitters (PMT) which are standardized by IEC 62828 series. The tests are applicable to any such devices characterized by their own specific input and output variables, and by the specific relationship (transfer function) between the inputs and outputs and include analogue and digital devices. For devices that require special tests, this standard can be used, together with any product specific standard specifying special tests. This document covers tests made under reference conditions.
This third edition cancels and replaces the second edition published in 2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Process measurement transmitters (PMT) have been removed from the scope of this standard

IEC 61298-3:2026 specifies general methods and procedures for conducting tests and reporting on the functional and performance characteristics of process instrumentation except process measurement transmitters (PMT) which are standardized by IEC 62828 series. The tests are applicable to any such devices characterized by their own specific input and output variables, and by the specific relationship (transfer function) between the inputs and outputs and include analogue and digital devices. For devices that require special tests, this document can be used, together with any product-specific standard specifying special tests. This document covers tests for the effects of influence quantities. This third edition cancels and replaces the second edition published in 2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) process measurement transmitters (PMT) have been removed from the scope of this document;
b) contents of subclauses referring to EMC and electrical safety have been deleted, only leaving reference to the IEC standards.

IEC 61131-3:2025 specifies the syntax and semantics of programming languages for programmable controllers as defined in IEC 61131-1.
This document specifies the syntax and semantics of a unified suite of programming languages for programmable controllers (PCs). This suite consists of the textual language structured text (ST), and the graphical languages, ladder diagram (LD) and function block diagram (FBD).
An additional set of graphical and equivalent textual elements named sequential function chart (SFC) is defined for structuring the internal organization of programs and function blocks. Also, configuration elements are defined which support the installation of programmable controller programs into programmable controller systems.
In addition, features are defined which facilitate communication among programmable controllers and other components of automated systems.
This edition includes the following significant technical changes with respect to the previous edition:
a) inclusion of UTF-8 strings and their associated functions;
b) Annex B contains a comprehensive list of features that have been added, removed or deprecated in comparison to IEC 61131-3:2013.

IEC TS 63165:2024 applies to the industrial water quality analyzer system that uses a photometric method to determine the concentration of one or more chemical components in industrial water (water used in manufacturing, processing, cooling, washing, boiler, etc).
The objective of this document is to:
- specify the terminology and definitions related to the performance characteristics of a photometric industrial water quality analyzer system;
- unify the performance expression and verifying methods of such an analyzer system;
- specify the test procedures to be used in making statements on the performance characteristics of a photometric industrial water quality analyzer system.

IEC 63206:2024 specifies the characterization, the classification (e.g.: analogue chart recorder, digital recorder, X-Y recorder, paperless recorder, event recorder, data logger, and data acquisition device, etc.) and performance evaluation methods of recorders. It covers type tests as well as routine tests.
This document is applicable to recorder devices and recorder modules for control systems.
IEC 63206 is intended for use by manufacturers to determine the performance of their products and by users or independent testing bodies to verify manufacturers’ performance specifications.
IEC 63206 has fully covered IEC 60873-1 and IEC 60873-2 which are withdrawn.

IEC 60534-1:2023 applies to all types of industrial-process control valves (hereinafter referred to as control valves). This document establishes a partial basic terminology list and provides guidance on the use of all other parts of IEC 60534.

IEC 61131-9:2022 specifies a single-drop digital communication interface technology for small sensors and actuators SDCI (commonly known as IO-Link™ ), which extends the traditional digital input and digital output interfaces as defined in IEC 61131-2 towards a point-to-point communication link for the exchange of complex data in both directions. This techno¬logy also enables the transfer of parameters to Devices and the delivery of identification and diagnostic information from the Devices to the automation system.
This technology is mainly intended for use with simple sensors and actuators in factory automation, which include small and cost-effective microcontrollers.
This document specifies the SDCI communication services and protocol (physical layer, data link layer and application layer in accordance with the ISO/OSI reference model) for both SDCI Masters and Devices.
This document also includes EMC test requirements.
This document does not cover communication interfaces or systems incorporating multiple point or multiple drop linkages, or integration of SDCI into higher level systems such as fieldbuses.

IEC 60751:2022 specifies the requirements, in addition to the resistance versus temperature relationship, for both industrial platinum resistance thermometers (later referred to as "thermometers") and industrial platinum resistance temperature sensors (later referred to as "platinum resistors") whose electrical resistance is derived from defined functions of temperature.
Values of temperature in this document are in terms of the International Temperature Scale of 1990, ITS-90. A temperature in the unit °C of this scale is denoted by the symbol t, except in Table A.1 where the full nomenclature t90 /°C is used.

IEC 60534-4:2021 specifies the requirements for the inspection and routine testing of control valves manufactured in conformity with the other parts of IEC 60534. This document is applicable to valves with pressure ratings not exceeding Class 2500. The requirements for actuators apply only to pneumatic actuators. This document does not apply to the types of control valves where radioactive service, fire safety testing, or other hazardous service conditions are encountered. If a standard for hazardous service conflicts with the requirements of this document, the standard for hazardous service should take precedence.

IEC 60584-3:2021 It is necessary for thermocouple temperature measurement that the electro-motive force (abbreviated as e.m.f. hereafter) of the thermocouple circuit is precisely measured by a measuring instrument. A thermocouple is electrically connected to the instrument by a proper pair of electric cables. IEC 60584-3:2021 standardizes these cables. It specifies identification and manufacturing tolerances for extension and compensating cables (mineral insulated extension and compensating cables are not included) provided directly to users of industrial processes. These tolerances are determined with respect to the e.m.f. ver-sus temperature relationship of IEC 60584-1. The requirements for extension and compensating cables for use in industrial process control are specified.

IEC PAS 63312:2021 deals with the general requirements, classification and technical requirements, installation and commissioning requirements, inspection and maintenance requirements, test methods and requirements of radiant energy sensing flame detectors (including IR, UV, visible light, and imaging-based flame detectors).
This PAS is applicable to the type selection, design, installation, commissioning, inspection, maintenance and acceptance of the radiant energy sensing flame detectors, which monitor the flame status of burners

IEC 62828-4:2020 establishes specific procedures for testing level transmitters used in measuring and control systems for industrial process and machinery control systems. For general test procedures, reference is to be made to IEC 62828-1:2017, applicable to all types of transmitters.
Throughout this document, the term "industrial transmitters" covers all types of transmitters used in measuring and control systems for industrial processes and for machinery.
The requirements of this document are applicable to all level measurement principles.
Detailed description of transmitters is given for two main principles for improved clarity.

IEC 62828-5:2020 establishes specific procedures for testing flow transmitters used in measuring and control systems for industrial process and for machinery control systems. For general test procedures, reference is to be made to IEC 62828-1:2017, applicable to all types of industrial and process measurement transmitters.
This document – together with IEC 62828-1:2017 – is the reference standard for testing every type of flow transmitter, not only for liquids but also for gases and for steam.
In this document, "industrial flow transmitters" consistently covers all types of flow transmitters used in measuring and control systems for industrial process and for machinery.

IEC 63144-1:2020(E) applies, in the field of metrology, to the statement and testing of technical data in datasheets and instruction manuals for thermographic cameras that are used to measure the temperature of surfaces. This includes, unless otherwise stated, both two-dimensional and one-dimensional (line cameras or line scanners) temperature measuring instruments, independently of the scanning principle (fixed multi-element detector or scanning camera system).
This document describes standard test methods to determine relevant metrological data of thermographic cameras. Manufacturers and sellers can choose relevant data and can state that the data shall be compliant with this Technical Specification.

IEC TR 62829-1:2019, which is a Technical Report, covers
• a study into the pre-requisites of chemometric (exploratory) data analysis,
• an overview of common data analysis procedures for univariate, bivariate and multivariate data analysis,
• explanations of the basic principles and major application areas of the different methods),
• some recommendations on the selection of an appropriate data analysis strategy.
These recommendations not covered earlier by other guidance documents on the topic are complemented by some advice on the validation of commercial (at the site of installation) and tailored software for process analytical purposes. Recommendations are given on available reference data sets (Annex B) for benchmarking of software implementing the data analysis methods covered (if available).

IEC 61207-3:2019 applies to the three main methods for measuring oxygen by its paramagnetic property, which are outlined in the introduction. It considers essential ancillary units and applies to analyzers installed indoors and outdoors. Safety-critical applications can require additional requirements from system and analyzer specifications not covered in this document. This document is intended:
- to specify terminology and definitions related to the functional performance of paramagnetic gas analyzers for the measurement of oxygen in a source gas;
- to unify methods used in making and verifying statements on the functional performance of such analyzers;
- to specify what tests are performed to determine the functional performance and how such tests are carried out;
- to provide basic documents to support the application of internationally recognized quality management standards.
This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) all references (normative and informative) have been updated, deleted or added to as appropriate;
b) all the terms, descriptions and definitions relating to the document have been updated where appropriate;
c) all references to “errors” have been replaced by “uncertainties” and appropriate updated definitions applied.

IEC 61207-2:2019 applies to all aspects of analyzers using high-temperature electro¬chemical sensors for the measurement of oxygen in gas. It applies to in-situ and extractive analyzers and to analyzers installed indoors and outdoors.
The object of this part is:
– to specify the terminology and definitions related to the functional performance of gas analyzers, utilizing a high-temperature electrochemical sensor, for the continuous measurement of oxygen concentration in a sample of gas;
– to unify methods used in making and verifying statements on the functional performance of such analyzers;
– to specify what tests are performed to determine the functional performance and how such tests are carried out;
– to provide basic documents to support the application of internationally recognized quality management standards. This second edition cancels and replaces the first edition published in 1994. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition.
a) all the terms and definitions relating to the document have been updated where appropriate;
b) the description of the principle of the galvanic cell has been expanded and clarified;
c) new definitions and illustrations have been added for different measurement methods for oxygen using solid electrolytes for galvanic cells;
d) new illustrations have been added for existing descriptions for ion pump cells;
e) a more detailed description of the effect of the presence of oxidizable gases has been added;
f) all references to “errors” have been replaced by “uncertainties” and appropriate updated definitions applied.

IEC 60534-3-1:2019 specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for given nominal sizes and pressure ratings of flanged, two-way, globe-type, straight pattern and angle pattern control valves This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) This standard has been extended to cover face-to-face dimensions and centre-to-face dimensions for control valves PN 160 and PN 250 (Class 900 and 1500)
b) Definitions of end-to-end dimensions and centre-to-end dimensions have been added for valves with flange facings where the gasket contact surfaces are not located at the extreme ends of the valve
c) Table 5 of adjustment value "X" for end-to-end dimensions of straight pattern valves with ring joint ends has been added
d) ANSI/ISA references have been added in Tables 1 to 4
e) ANSI/ISA references have been added in the bibliography

IEC TR 63176:2019(E) encompasses recommendations for planning, installation and operation (incl. maintenance) of process analyzer technology measuring equipment in process industry safety instrumented systems. It covers all necessary steps for the qualification of safety equipment and supplements the safety management of safety instrumented system equipment through the addition of special requirements for process analyzer technology equipment. This document does not encompass the entire safety management of safety instrumented system equipment.

IEC 60746-4:2018 applies to analyzers using membrane covered amperometric sensors. It applies to analyzers suitable for use in water containing liquids, ultrapure waters, fresh or potable water, sea water or other aqueous solutions, industrial or municipal waste water from water bodies (e.g. lakes, rivers, estuaries), as well as for industrial process streams and process liquids. Whilst in principle amperometric oxygen-analyzers are applicable in gaseous phases, the expression of performance in the gas phase is outside the scope of this document. This document is applicable to analyzers specified for permanent installation in any location (indoors or outdoors) using membrane-covered amperometric sensors. This edition includes the following significant technical changes with respect to the previous edition:
a) terms and definitions have been revised to meet the requirements of ISO/IEC Directives Part 2:2016.
b) ISO 5814:2012 is cited as reference for solubility tables of dissolved oxygen in water with variable salt content at different pressure and temperature.

IEC TR 62967:2018(E) provides guidance on the assurance of reliability data of automation devices. If the source of this data is through calculation, guidance is given on how to specify the methods used for this calculation. If the source is through observations, guidance is given on how to describe these observations and their evaluations. If the source is the outcome of laboratory tests, guidance is given on how to specify these tests and the conditions under which they have been carried out. This document defines the form to present the data.

IEC 62828-3:2018 establishes specific procedures for testing temperature transmitters used in measuring and control systems for industrial process and for machinery control systems.
When the process measurement transmitter features the temperature transmitter separated from the sensing element, the standard applies only to the temperature transmitter without the sensing element. In the case of a device where the sensing element is fully integrated with the temperature transmitter, the standard applies to the complete device. For general test procedures, reference is made to IEC 62828-1, which is applicable to all types of industrial and process measurement transmitters (PMT). The sensing element itself as well as radiation thermometers are excluded from the scope of this document. The IEC 62828 series cancels and replaces the IEC 60770 series and proposes revisions for the IEC 61298 series.
NOTE In industrial and process applications to indicate the process measurement transmitters, it is common also to use the terms “industrial transmitters”, or “process transmitters”.

IEC TR 61131-8:2017(E) applies to the programming of program­mable controller systems using the programming languages defined in IEC 61131-3. The scope of IEC 61131-3 is applicable to this part.
This document provides
a) guidelines for the application of IEC 61131-3,
b) guidelines for the implementation of IEC 61131-3 languages for programmable controller systems,
c) programming and debugging tool (PADT) recommendations.
For further information see IEC 61131-4 which describes other aspects of the application of programmable controller systems, e.g. electromagnetic compatibility or functional safety. This third edition cancels and replaces the second edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: This third edition is a compatible extension of the second edition. The main extensions are new data types and conversion functions, references, name spaces and the object oriented features of classes and function blocks (see listing in Annex B of IEC 61131-3:2013).

IEC 62828-1:2017 establishes a general framework for defining reference conditions and test procedures applicable to all types of industrial and process measurement transmitters (PMTs) used in measuring and control systems for industrial process and machinery. These reference test conditions are divided into “standard reference conditions”, which apply when determining the accuracy of measurement, and “ambient and process reference conditions”, which are used to assess the influence of external quantities on the measurement. The IEC 62828 series cancels and replaces the IEC 60770 series and proposes revisions for the IEC 61298 series.

IEC 62828-2:2017 establishes specific procedures for testing pressure process measurement transmitters (PMT) used in measuring and control systems for industrial processes and for machinery control systems. A pressure PMT can feature a remote seal to bring the process variable to the sensing element in the PMT. When the remote seal cannot be separated from the PMT, the complete device is tested.

IEC 61131-2:2017 specifies functional and electromagnetic compatibility requirements and related verification tests for any product where the primary purpose is performing the function of industrial control equipment, including PLC and/or PAC, and/or their associated peripherals which have as their intended use the control and command of machines, automated manufacturing and industrial processes, e.g. discrete, batch and continuous control.
This fourth edition cancels and replaces the third edition published in 2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) removal of safety requirements and instead pointing to IEC 61010-2-201;
b) addition of negative logic digital inputs and outputs;
c) addition of Type 3-d digital input;
d) addition of 2,7 GHz to 6 GHz requirement for Radio-frequency electro-magnetic amplitude modulated immunity;
e) clarification of temperature testing;
f) clarification of type testing;
g) deprecation of certain technologies;
h) general update of multiple aspects of functionality and EMC;
i) reorganization of clauses to associate requirements and verifications more closely.

IEC 61987-24-2:2017 provides
- an operating list of properties (OLOP) for the description of the operating parameters and the collection of requirements for accessories attached to automated valves, listed in Annex A,
- device lists of properties (DLOPs) for accessories attached to automated valves, listed in Annex B.

IEC 61987-24-3:2017 provides
- an operating list of properties (OLOP) for the description of the operating parameters and the collection of requirements for flow modification accessories for automated valves, listed in Annex A,
- device lists of properties (DLOPs) for flow modification accessories for automated valves, listed in Annex B.

IEC 62952-3:2017 specifies requirements and a profile for a power source containing a generic energy harvesting adapter module (GEHAM) used as power source for wireless communication devices (WCD).

IEC TR 62010:2016(E) provides an understanding of analyser maintenance principles and approaches. It is designed as a reference source for individuals closely involved with maintenance of analytical instrumentation, and provides guidance on performance target setting, strategies to improve reliability, methods to measure effective performance, and the organisations, resources and systems that need to be in place to allow this to occur.

IEC 62952-1:2016 specifies the general requirements of power modules for wireless communication devices (WCD). This document includes additional optional specifications to permit use in explosive atmospheres and harsh environments. This International Standard is based on VDI/VDE 2185 Blatt 3.

IEC 62952-2:2016 specifies a profile for a power module containing batteries used as power source for wireless communication devices.

IEC 61003-2:2016 gives guidelines for inspection and routine testing of electrical and pneumatic instruments with two- or multi-position output, for instance, for acceptance tests or after repair. It is applicable to electrical and pneumatic industrial-process instruments, using measured values that are continuous signals. The set point value may be either a mechanical (position, force, etc.) or a standard signal. These instruments may be used as controllers or as switches for alarms and other similar purposes. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- use of the term "two- or multi-position output" instead of "two- or multi-state instrument" (see Scope);
- use of the term "differential gap" instead of "switching differential" (see Table 1 No 2);
- use of the term "dielectric strength" instead of "isolation test" (see Table 1 No 5).
This publication is to be read in conjunction with IEC 61003-1:2016, IEC 61298-2:2008 and IEC 61298-3:2008

IEC 61003-1:2016 is applicable to pneumatic and electric industrial-process instruments or control device using measured values that are continuous signals either a mechanical (position, force, etc.) or a standard electric signal. It is intended to specify uniform terminologies and testing methods for performance evaluation of industrial-process instruments or process control systems modules with analogue measured values and two- or multi-position outputs. This third edition cancels and replaces the second edition published in 2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- use of the term "two-position output" instead of "two-state instrument" (see 3.2);
- use of the term "differential gap" instead of "switching differential" (see 3.4);
- use of "fast transient/burst immunity requirements" instead of "power supply transient overvoltages", and revision of the test method (see 6.2.10);
- deletion of 6.2.12 "common mode interference" and 6.2.13 "normal mode interference (series mode) "tests of the previous edition;
- use of the term "electromagnetic field" instead of "radiated electromagnetic interference", the test method remained the same (see 6.2.16);
- use of the term "dielectric strength" instead of "isolation test", and revision of the reference (see 6.3.4);
- deletion of Subclauses "8.2 Design features", "10.1 Routine maintenance and adjustment" and "10.2 Repair" of the previous edition.

IEC 61515:2016 establishes the requirements for simplex, duplex and triplex mineral-insulated metal-sheathed thermocouple cables and thermocouples, which are intended for use in general industrial applications. The abbreviation MIMS (for "mineral-insulated metal-sheathed") will be used hereafter. It covers thermocouple cables and thermocouples with only base-metal conductors of Types T, J, E, K and N. The specifications in this standard apply to new thermocouple cables and thermocouple units as delivered to the user. They do not apply to the product after use. This second edition cancels and replaces the first edition published in 1995. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Duplex and triplex are standardized.
- Specification of insulation resistance is revised so that the user can choose the best product to fit for the purpose.
- "Table 2 Recommended maximum operating temperatures" in the previous version is expanded significantly including newly developed sheath material and it is moved to Annex C.
- Test items and their methods are expanded and a guide table (Table 4) is added for userfriendliness.

IEC 60534-2-3:2015 is applicable to industrial-process control valves and provides the flow capacity test procedures for determining the following variables used in the equations given in IEC 60534-2-1:
a) flow coefficient C;
b) liquid pressure recovery factor without attached fittings FL;
c) combined liquid pressure recovery factor and piping geometry factor of a control valve with attached fittings FLP;
d) piping geometry factor FP;
e) pressure differential ratio factors xT and xTP;
f) valve style modifier Fd;
g) Reynolds number factor FR.
This third edition cancels and replaces the second edition published in 1997, of which it constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of informative Annexes B, C, D, E and F.
b) Organizational and formatting changes were made to group technically related subject matter.

IEC 61987-24-1:2015 provides Operating Lists of Properties (OLOPs) for the description of the operating parameters and the collection of requirements for valve/actuator accessories, that can be used for every valve/actuator accessory, Device Lists of Properties (DLOPs) for positioners and I/P converters.

IEC 61987-21:2015 provides a characterization for the integration of automated valves, including control valves, automated on/off-valves and process regulators, in the Common Data Dictionary (CDD); generic structures in conformance with IEC 61987-10 for Operating Lists of Properties (OLOPs) and Device Lists of Properties (DLOPs) of final control elements.

IEC 61987-23:2015 provides Operating Lists of Properties (OLOPs) for the description of the operating parameters and the collection of requirements for valve actuators, Device Lists of Properties (DLOPs) for valve actuators.

IEC 61987-22:2015 provides Operating Lists of Properties (OLOP) for the description of the operating parameters and the collection of requirements for valve body assemblies and process regulators, Device Lists of Properties (DLOPs) for the description of various types of valve body assemblies and process regulators.

IEC 60534-8-4:2015 establishes a method to predict the noise generated in a control valve by liquid flow and the resulting noise level measured downstream of the valve and outside of the pipe. The noise may be generated both by normal turbulence and by liquid cavitation in the valve. Parts of the method are based on fundamental principles of acoustics, fluid mechanics, and mechanics. The method is validated by test data. This third edition cancels and replaces the second edition published 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Hydrodynamic noise is predicted as a function of frequency and
b) Elimination of the acoustic power ratio.

This amendment 2 is valid for the following parts of the IEC 60317: Part 1 (1990), Part 7 (1990), Part 8 (1990), Part 11 (1990), Part 13 (1990) and Part 25 (1990).

IEC TR 61832:2015(E) is intended as a guide to assist in the development of a specification or material requisition for analysers and their associated support systems. It is intended to be used for enquiry purposes and the subsequent assessment of the bids presented by the prospective vendors. The intention is to cover the general principles and items that need to be addressed when purchasing large analyser systems.
This publication is to be read in conjunction with IEC 61831:2011.

Applies to portable devices consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate overcurrent protection. They are intended for single-phase circuits for rated currents not exceeding 16 A for rated voltages not exceeding 250 V a.c., or for rated current not exceeding 32 A for rated voltages not exceeding 130 V a.c. to earth.

IEC 61285:2015 describes the physical requirements for the safe operation of the process analyser measuring system installed in an analyser house (AH) in order to ensure its protection against fire, explosion and health hazards. This standard applies for analyser houses with inner and/or external potential explosive atmospheres and it applies to hazards caused by toxic substances or asphyxiant gases. This third edition cancels and replaces the second edition published in 2004 and constitutes a technical revision. The main changes are:
- incorporation of previously issued corrigendum and
- minor updates to several sections and references.

IEC 61207-6:2014 applies to all aspects of analyzers using photometric techniques for the measurement of concentration of one or more components in a mixture of gases or vapors. It should be used in conjunction with IEC 61207-1. It specifies:
- the terminology and definitions related to the functional performance of gas analyzers, utilizing a photometric analyzer, for the continuous measurement of gas or vapor concentration in a source gas;
- it unifies methods used in making and verifying statements on the functional performance of such analyzers;
- it specifies what tests should be performed to determine the functional performance and how such tests should be carried out and it provides basic documents to support the application of standards of quality assurance ISO 9001. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. The major changes are:
- All references (normative and informative) have been updated, deleted or added to as appropriate.
- All the terms and definitions relating to the document have been updated where appropriate.
- New definitions have been added for generic photometric equipment and measurements.
- All references to "errors" have been replaced by "uncertainties" and appropriate updated definitions applied.
- Figures A.1, A.2.

IEC 61207-7:2013 includes the terminology, definitions, statements and tests that are specific to tuneable semiconductor laser gas analyzers, which utilize tuneable semiconductor laser absorption spectroscopy (TSLAS). It applies to all aspects of analyzers utilizing TSLAS for the concentration measurement of one or more gas components in a gaseous mixture or vapour. It applies to analyzers utilizing tuneable semiconductor lasers as sources and utilizing absorption spectroscopy, such as direct absorption, FMS, WMS, multi-pass absorption spectroscopy, CRDS, ICOS, PAS and CEAS techniques, etc.
This publication is to be read in conjunction with IEC 61207-1:2010. The contents of the corrigendum of June 2015 have been included in this copy.