Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements

IEC 61326-1:2012 is available as IEC 61326-1:2012 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61326-1:2012 specifies requirements for immunity and emissions regarding electromagnetic compatibility (EMC) for electrical equipment, operating from a supply or battery of less than 1 000 V a.c. or 1 500 V d.c. or from the circuit being measured. Equipment intended for professional, industrial-process, industrial-manufacturing and educational use is covered by this part. This second edition cancels and replaces the first edition, published in 2005. It constitutes a technical revision. The significant technical changes with respect to the previous edition are:
- the immunity test levels and performance criteria have been reviewed;
- requirements for portable test and measurement equipment have been clarified and amended;
- the description of the electromagnetic environments has been improved.

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 1: Exigences générales

IEC 61326-1:2012 est disponible sous forme de IEC 61326-1:2012 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
IEC 61326-1:2012 énonce les exigences relatives à l'immunité et aux émissions concernant la compatibilité électromagnétique (CEM) pour les matériels électriques fonctionnant à partir d'une source d'alimentation ou d'une batterie inférieure à 1 000 V en courant alternatif ou 1 500 V en courant continu ou à partir du circuit mesuré. Elle concerne les équipements prévus pour un usage professionnel, pour les processus industriels et pour l'enseignement. Cette deuxième édition annule et remplace la première édition parue en 2005. Elle constitue une révision technique. Les modifications techniques significatives par rapport à l'édition antérieure sont:
- les niveaux d'essai d'immunité et les critères de performance ont été revus;
- les exigences concernant le matériel d'essai et de mesure portatif ont été clarifiées et modifiées;
- la description des environnements électromagnétiques a été améliorée.

General Information

Status
Published
Publication Date
09-Jul-2012
Technical Committee
Current Stage
DELPUB - Deleted Publication
Completion Date
26-Oct-2020
Ref Project

Buy Standard

Standard
IEC 61326-1:2012 - Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements
English and French language
41 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC 61326-1
Edition 2.0 2012-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 1: General requirements
Matériel électrique de mesure, de commande et de laboratoire – Exigences
relatives à la CEM –
Partie 1: Exigences générales
IEC 61326-1:2012
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2012 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester.

If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,

please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni

utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les

microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.

Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette

publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigenda or an amendment might have been published.
Useful links:

IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org

The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and

by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and

committee,…). definitions in English and French, with equivalent terms in

It also gives information on projects, replaced and additional languages. Also known as the International

withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc

Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication

details all new publications released. Available on-line and or need further assistance, please contact the

also once a month by email. Customer Service Centre: csc@iec.ch.
A propos de la CEI

La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des

Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI

Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez

l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
Liens utiles:

Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org

La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes

publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000

référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que

Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.

publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique

International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.

Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur

Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions

contactez-nous: csc@iec.ch.
---------------------- Page: 2 ----------------------
IEC 61326-1
Edition 2.0 2012-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 1: General requirements
Matériel électrique de mesure, de commande et de laboratoire – Exigences
relatives à la CEM –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 17.220; 19.080; 25.040.40; 33.100 ISBN 978-2-83220-207-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 61326-1 © IEC:2012
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope ............................................................................................................................... 7

2 Normative references ....................................................................................................... 8

3 Terms and definitions ....................................................................................................... 9

4 General .......................................................................................................................... 11

5 EMC test plan ................................................................................................................. 12

5.1 General ................................................................................................................. 12

5.2 Configuration of EUT during testing ....................................................................... 12

5.2.1 General ..................................................................................................... 12

5.2.2 Composition of EUT ................................................................................... 12

5.2.3 Assembly of EUT ....................................................................................... 12

5.2.4 I/O ports .................................................................................................... 12

5.2.5 Auxiliary equipment ................................................................................... 12

5.2.6 Cabling and earthing (grounding) ............................................................... 12

5.3 Operation conditions of EUT during testing ............................................................ 13

5.3.1 Operation modes ....................................................................................... 13

5.3.2 Environmental conditions ........................................................................... 13

5.3.3 EUT software during test ........................................................................... 13

5.4 Specification of functional performance ................................................................. 13

5.5 Test description ..................................................................................................... 13

6 Immunity requirements ................................................................................................... 13

6.1 Conditions during the tests .................................................................................... 13

6.2 Immunity test requirements ................................................................................... 13

6.3 Random aspects.................................................................................................... 16

6.4 Performance criteria .............................................................................................. 17

6.4.1 General ..................................................................................................... 17

6.4.2 Performance criterion A ............................................................................. 17

6.4.3 Performance criterion B ............................................................................. 17

6.4.4 Performance criterion C ............................................................................. 17

7 Emission requirements ................................................................................................... 17

7.1 Conditions during measurements .......................................................................... 17

7.2 Emission limits ...................................................................................................... 18

8 Test results and test report ............................................................................................. 18

9 Instructions for use ......................................................................................................... 18

Annex A (normative) Immunity test requirements for portable test and measurement

equipment powered by battery or from the circuit being measured ........................................ 19

Bibliography .......................................................................................................................... 20

Figure 1 – Examples of ports ................................................................................................ 11

Table 1 – Immunity test requirements for equipment intended to be used in a basic

electromagnetic environment ................................................................................................ 14

Table 2 – Immunity test requirements for equipment intended to be used in an

industrial electromagnetic environment ................................................................................. 15

---------------------- Page: 4 ----------------------
61326-1 © IEC:2012 – 3 –
Table 3 – Immunity test requirements for equipment intended to be used in a

controlled electromagnetic environment ................................................................................ 16

Table A.1 – Immunity test requirements for portable test and measurement equipment ......... 19

---------------------- Page: 5 ----------------------
– 4 – 61326-1 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 1: General requirements
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61326-1 has been prepared by subcommittee 65A: System

aspects, of IEC technical committee 65: Industrial-process measurement, control and

automation.

This second edition cancels and replaces the first edition, published in 2005. This edition

constitutes a technical revision.

The significant technical changes with respect to the previous edition are as follows:

– the immunity test levels and performance criteria have been reviewed;

– requirements for portable test and measurement equipment have been clarified and

amended;
– the description of the electromagnetic environments has been improved.
---------------------- Page: 6 ----------------------
61326-1 © IEC:2012 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
65A/628/FDIS 65A/637/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts of the IEC 61326 series under the general title Electrical equipment for

measurement, control and laboratory use – EMC requirements, can be found on the IEC

website.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 7 ----------------------
– 6 – 61326-1 © IEC:2012
INTRODUCTION

Instruments and equipment within the scope of this standard may often be geographically

widespread and hence operate under a wide range of environmental conditions.

The limitation of undesired electromagnetic emissions ensures that no other equipment,

installed nearby, is unduly influenced by the equipment under consideration. The limits are

more or less specified by, and therefore taken from, IEC and International Special Committee

on Radio Interference (CISPR) publications.

However, the equipment should function without undue degradation in an electromagnetic

environment typical for the locations where it is intended to be operated. In this respect the

standard specifies three different types of electromagnetic environment and the levels for

immunity. More detailed information about issues related to electromagnetic environments are

given in IEC 61000-2-5. Special risks, involving for example nearby or direct lightning strikes,

circuit-breaking, or exceptionally high electromagnetic radiation in close proximity, are not

covered.

Complex electric and/or electronic systems should require EMC planning in all phases of their

design and installation, taking into consideration the electromagnetic environment, any

special requirements, and the severity of failures.

This part of IEC 61326 specifies the EMC requirements that are generally applicable to all

equipment within its scope. For certain types of equipment, these requirements will be

supplemented or modified by the special requirements of one, or more than one, particular

part within IEC 61326-2 series. These should be read in conjunction with the IEC 61326-1

requirements.
---------------------- Page: 8 ----------------------
61326-1 © IEC:2012 – 7 –
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 1: General requirements
1 Scope

This part of IEC 61326 specifies requirements for immunity and emissions regarding electro-

magnetic compatibility (EMC) for electrical equipment, operating from a supply or battery of

less than 1 000 V a.c. or 1 500 V d.c. or from the circuit being measured. Equipment intended

for professional, industrial-process, industrial-manufacturing and educational use is covered

by this part. It includes equipment and computing devices for
– measurement and test;
– control;
– laboratory use;

– accessories intended for use with the above (such as sample handling equipment),

intended to be used in industrial and non-industrial locations.

Computing devices and assemblies and similar equipment within the scope of Information

Technology Equipment (ITE) and complying with applicable ITE EMC standards may be used

in systems within the scope of this part of IEC 61326 without additional testing, if they are

suitable for the intended electromagnetic environment.

It is generally considered that this standard takes precedence over the corresponding generic

EMC standards.
The following equipment is covered by this standard.
a) Electrical measurement and test equipment

This is equipment which, by electrical means, measures, indicates or records one or more

electrical or non-electrical quantities, also non-measuring equipment such as signal

generators, measurement standards, power supplies and transducers.
b) Electrical control equipment

This is equipment which controls one or more output quantities to specific values, with

each value determined by manual settings, by local or remote programming, or by one or

more input variables. This includes Industrial Process Measurement and Control (IPMC)

equipment, which consists of devices such as:
– process controllers and regulators;
– programmable controllers;
– power supply units for equipment and systems (centralized or dedicated);
– analogue/digital indicators and recorders;
– process instrumentation;
– transducers, positioners, intelligent actuators, etc.
---------------------- Page: 9 ----------------------
– 8 – 61326-1 © IEC:2012
c) Electrical laboratory equipment

This is equipment which measures, indicates monitors or analyses substances, or is used

to prepare materials, and includes In Vitro Diagnostic (IVD) equipment. This equipment

may also be used in areas other than laboratories, for example self-test IVD equipment

may be used in the home.

Equipment within the scope of this standard might be operated in different electromagnetic

environments; depending on the electromagnetic environment different emission and immunity

test requirements are applicable.
This standard considers three types of electromagnetic environments:
• basic electromagnetic environment;
• industrial electromagnetic environment;
• controlled electromagnetic environment.
Corresponding immunity test requirements are described in Clause 6.

In terms of emission requirements, equipment shall be classified in Class A or Class B

equipment, as per the requirements and procedure of CISPR 11. The corresponding emission

requirements are described in Clause 7.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and

are indispensable for its application. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
)

IEC 61000-3-2:2005, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for

harmonic current emissions (equipment input current ≤ 16 A per phase)
Amendment 1:2008
Amendment 2:2009

IEC 61000-3-3:2008, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of

voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for

equipment with rated current ≤ 16 A per phase and not subject to conditional connection

IEC 61000-3-11:2000, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of

voltage changes, voltage fluctuations and flicker in public low-voltage supply systems –

Equipment with rated current ≤75 A and subject to conditional connection

IEC 61000-3-12:2011, Electromagnetic compatibility (EMC) – Part 3-12: Limits – Limits for

harmonic currents produced by equipment connected to public low-voltage systems with input

current >16 A and ≤75 A per phase

IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measure-

ment techniques – Electrostatic discharge immunity test

IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measure-

ment techniques – Radiated, radio-frequency, electromagnetic field immunity test
Amendment 1:2007
Amendment 2:2010
---------------------- Page: 10 ----------------------
61326-1 © IEC:2012 – 9 –

IEC 61000-4-4:2004, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measure-

ment techniques – Electrical fast transient/burst immunity test
Amendment 1:2010

IEC 61000-4-5:2005, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measure-

ment techniques – Surge immunity test

IEC 61000-4-6:2008, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measure-

ment techniques – Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-8:2009, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measure-

ment techniques – Power frequency magnetic field immunity test

IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measure-

ment techniques – Voltage dips, short interruptions and voltage variations immunity tests

CISPR 11:2009, Industrial, scientific and medical equipment – Radio-frequency disturbance

characteristics – Limits and methods of measurement
Amendment 1:2010
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-161 as well

as the following apply.
3.1
basic electromagnetic environment

environment existing at locations characterized by being supplied directly at low voltage from

the public mains network
EXAMPLES
– residential properties, for example houses, apartments;
– retail outlets, for example shops, supermarkets;
– business premises, for example offices, banks;
– areas of public entertainment, for example cinemas, public bars, dance halls;

– outdoor locations, for example petrol stations, car parks, amusement and sports centres;

– light-industrial locations, for example workshops, laboratories, service centres.

3.2
class A equipment

equipment suitable for use in all establishments other than domestic and those directly

connected to a low voltage power supply network which supplies buildings used for domestic

purposes
[SOURCE: derived from CISPR 11:2009, 5.3]
3.3
class B equipment

equipment suitable for use in domestic establishments and in establishments directly

connected to a low voltage power supply network which supplies buildings used for domestic

purposes
[SOURCE: derived from CISPR 11:2009, 5.3]
---------------------- Page: 11 ----------------------
– 10 – 61326-1 © IEC:2012
3.4
controlled electromagnetic environment

environment usually characterized by recognition and control of EMC threats by users of the

equipment or by design of the installation
3.5
d.c. distribution network

local d.c. electricity supply network in the infrastructure of a certain site or building intended

for connection to the d.c. power port of any type of equipment
3.6
enclosure port

physical boundary of equipment through which electromagnetic fields may radiate or impinge

3.7
functional performance

operational performance characteristics specified by the manufacturer of the equipment,

defining the ability of equipment to achieve the intended functions
3.8
industrial electromagnetic environment

environment existing at locations characterized by a separate power network, in most cases

supplied from a high- or medium-voltage transformer, dedicated for the supply of installations

feeding manufacturing or similar plants with one or more of the following conditions:

– frequent switching of heavy inductive or capacitive loads;
– high currents and associated magnetic fields;

– presence of Industrial, Scientific and Medical (ISM) equipment (for example, welding

machines)
3.9
laboratory
test and measurement area

area that is specifically used for analysis, testing and servicing and where equipment is

operated by trained personnel
3.10
long-distance lines

lines within a building which are longer than 30 m, or which leave the building (including lines

of outdoor installations)
3.11
port

any particular interface of the specific device or system with the external electromagnetic

environment
EXAMPLE See Figure 1 for an example of Equipment Under Test (EUT).

Note 1 to entry: I/O ports are input, output or bi-directional, measurement, control, or data ports.

Note 2 to entry: Within this document, ports intended to be connected with earth potential for functional reasons

(functional earth ports) are considered as I/O ports

Note 3 to entry: Within this document the protective earth port (if any) is considered as part of the power port.

---------------------- Page: 12 ----------------------
61326-1 © IEC:2012 – 11 –
Enclosure port
AC power port
EUT
DC power port I/O port
IEC 1277/12
Figure 1 – Examples of ports
3.12
portable (measuring) instrument

measuring instrument designed to be easily carried by hand and to be connected and

disconnected by the user
[SOURCE: IEC 60050-300:2001, 312-02-18]
3.13
type test
conformity test made on one or more items representative of the production
[SOURCE: IEC 60050-151:2001, 151-16-16]
4 General

Equipment and systems within the scope of this standard can be subjected to various kinds of

electromagnetic disturbances, conducted by power, measurement or control lines, or radiated

from the environment. The types and levels of disturbances depend on the particular

conditions in which the systems, subsystems or equipment are installed and operated.

Equipment and individual devices of a system within the scope of this standard can also be a

source of electromagnetic disturbances over a wide frequency range. These disturbances can

be conducted through power and signal lines, or be directly radiated, and can affect the

performance of other equipment, or influence the external electromagnetic environment.

For emissions, the objective of the requirements given in this standard is to ensure that the

disturbances generated by the equipment and systems, when operated normally, do not

exceed a level which could prevent other systems from operating as intended. The emission

limits are considered in 7.2.

The manufacturer shall give information that emissions, which exceed the levels required by

this standard, can occur when equipment is connected to a test object.

NOTE 1 Higher immunity levels, different number of tests and different performance criteria than those specified

can be necessary for particular applications (for example, when reliable operation of the equipment is essential for

safety) or when the equipment is intended for use in harsher electromagnetic environments.

NOTE 2 In special cases, for example when highly susceptible equipment is being used in close proximity,

additional mitigat
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.