1、 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 photomtriques IEC 61207-6:2014-11(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTE
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19、ires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. 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: Analyse
20、urs photomtriques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE S ICS 19.080: 71.040.40 PRICE CODE CODE PRIX ISBN 978-2-8322-1936-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationa
21、le 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 agr. 2 IEC 61207-6:2014 IEC 2014 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope and object . 6 2 Normative references 6
22、 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 comp
23、liance 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) Techniqu
24、es 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
25、analysis systems . 18 Figure A.4 Test apparatus to simulate duct conditions for in-situ/across-duct analyzers 19 IEC 61207-6:2014 IEC 2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ EXPRESSION OF PERFORMANCE OF GAS ANALYZERS Part 6: Photometric analyzers FOREWORD 1) The International Electrotechn
26、ical 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
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35、 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
36、 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 61207-6 has been prepared by sub-committee 65B: Measurement and control devices, of IEC technical committee 65: Industrial-process measurement
37、 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
38、 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 appropr
39、iate 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
40、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 cont
41、ents 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. IEC 61207-6:20
42、14 IEC 2014 5 INTRODUCTION Photometric analyzers utilize detectors which respond to wavelengths in the ultraviolet, visible and infrared part of the electromagnetic spectrum within the wavelength range 0,1 m to 50 m (see Figure A.1). Within this range of wavelengths, many gases have absorption and/o
43、r emission bands. Analyzers designed to utilize these bands employ several techniques, including sensing of specific absorbed radiation by the sample gas or emitted radiation from the gas sample after artificial excitation. The volume of gas measured may be contained within a sample cell and this sa
44、mple may or may not be conditioned, or (for in-situ analyzers) the concentration may be directly measured within the sample gas itself (see Figure A.2). 6 IEC 61207-6:2014 IEC 2014 EXPRESSION OF PERFORMANCE OF GAS ANALYZERS Part 6: Photometric analyzers 1 Scope and object This part of IEC 61207 appl
45、ies 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. For photometric analyzers utilizing tuneable semiconductor laser absorption spectroscopy (TS
46、LAS) for gas measurements, IEC 61207-7 should also be referred to. This part of IEC 61207 applies to analyzers using non-dispersive and dispersive wavelength selection and using absorption, emission, wavelength derivative or scattering techniques. It applies to analyzers which receive either a condi
47、tioned or unconditioned sample of gas either under vacuum, at ambient pressure or pressurized. It applies to analyzers which measure gas concentrations directly within the sample gas. The object of this part is: to specify the terminology and definitions related to the functional performance of gas
48、analyzers, utilizing a photometric analyzer, for the continuous measurement of gas or vapor concentration in a source gas; to unify methods used in making and verifying statements on the functional performance of such analyzers; to specify what tests should be performed to determine the functional p
49、erformance and how such tests should be carried out; to provide basic documents to support the application of standards of quality assurance ISO 9001. 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 referen
