IEC 61207-6:2014

IEC 61207-6 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Expression of performance of gas analyzers –
Part 6: Photometric analyzers
Expression des performances des analyseurs de gaz –
Partie 6: Analyseurs photométriques

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IEC 61207-6 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Expression of performance of gas analyzers –

Part 6: Photometric analyzers
Expression des performances des analyseurs de gaz –

Partie 6: Analyseurs photométriques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 19.080: 71.040.40 ISBN 978-2-8322-1936-2

– 2 – IEC 61207-6:2014  IEC 2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Procedure for specification . 13
4.1 General . 13
4.2 Specification of essential ancillary units and services . 13
4.3 Additional terms related to the specification of performance . 13
5 Recommended standard values and range of influence quantities . 14
6 Procedures for compliance testing . 14
6.1 Verification of performance values . 14
6.2 Test equipment . 14
6.3 Simulation of duct width . 14
6.4 Testing procedures . 15
6.4.1 General . 15
6.4.2 Linearity uncertainty . 15
6.4.3 Interference uncertainty . 15
6.4.4 Delay time, rise and fall time . 16
Annex A (normative) Techniques and systems of photometric analysis . 17
Annex B (informative) Methods of preparation of water-vapor in test gases. 20
Bibliography . 22

Figure A.1 – Wavelength range for photometric measurements . 17
Figure A.2 – Analysis systems for gases . 17
Figure A.3 – Test apparatus to apply gases and water vapor to analysis systems . 18
Figure A.4 – Test apparatus to simulate duct conditions for in-situ/across-duct
analyzers . 19

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPRESSION OF PERFORMANCE OF GAS ANALYZERS –

Part 6: Photometric analyzers
FOREWORD
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International Standard IEC 61207-6 has been prepared by sub-committee 65B: Measurement
and control devices, of IEC technical committee 65: Industrial-process measurement, control
and automation.
This second edition cancels and replaces the first edition published in 1994. This edition
constitutes a technical revision.
The major changes with respect to the previous edition are as follows.
– 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.

– 4 – IEC 61207-6:2014  IEC 2014
– All references to “errors” have been replaced by “uncertainties” and appropriate updated
definitions applied.
– Figures A.1, A.2 and A.4 have been updated.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/947/FDIS 65B/956/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 in the IEC 61207 series, published under the general title Expression of
performance of gas analyzers, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stabili
...