1、BSI Standards PublicationExpression of performance of fluorometric oxygen analyzers in liquid mediaBS EN 62703:2013National forewordThis British Standard is the UK implementation of EN 62703:2013. It isidentical to IEC 62703:2013.The UK participation in its preparation was entrusted by TechnicalComm
2、ittee GEL/65, Measurement and control, to Subcommittee GEL/65/1,System considerations.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its
3、 correct application. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 78815 4ICS 17.020; 71.040.01; 71.120.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStand
4、ards Policy and Strategy Committee on 30 November 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62703:2013EUROPEAN STANDARD EN 62703 NORME EUROPENNE EUROPISCHE NORM August 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen
5、de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62703:2013 E ICS 17.020; 71
6、.040; 71.120 English version Expression of performance of fluorometric oxygen analyzers in liquid media (IEC 62703:2013) Expression des performances des analyseurs doxygne fluormtriques en milieu liquide (CEI 62703:2013) Angabe zum Betriebsverhalten von fluorometrischen Sauerstoffanalysatoren in fls
7、sigen Medien (IEC 62703:2013) This European Standard was approved by CENELEC on 2013-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-d
8、ate lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by transl
9、ation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, De
10、nmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62
11、703:2013EN 62703:2013 - 2 - Foreword The text of document 65B/867/FDIS, future edition 1 of IEC 62703, prepared by IEC/TC 65B “Measurement and control devices, of IEC technical committee 65: Industrial-process measurement, control and automation“ was submitted to the IEC-CENELEC parallel vote and ap
12、proved by CENELEC as EN 62703:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-05-01 latest date by which the national standards conflicting with the document h
13、ave to be withdrawn (dow) 2016-08-01 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International
14、Standard IEC 62703:2013 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60654 (all parts) NOTE Harmonised as EN 60654 (all parts). IEC 60654-1 NOTE Harmonised as
15、EN 60654-1. IEC 60770-1 NOTE Harmonised as EN 60770-1. IEC 61207-1:2010 NOTE Harmonised as EN 61207-1:2010. IEC 61207-2 NOTE Harmonised as EN 61207-2. IEC 61298 (all parts) NOTE Harmonised as EN 61298 (all parts). IEC 61326 (all parts) NOTE Harmonised as EN 61326 (all parts). ISO 5814:2012 NOTE Harm
16、onised as EN ISO 5814:2012. ISO 7888:1985 NOTE Harmonised as EN 27888:1993. ISO 9001 NOTE Harmonised as EN ISO 9001. ISO 80000-1:2009 NOTE Harmonised as EN ISO 80000-1:2013. BS EN 62703:2013- 3 - EN 62703:2013 Annex ZA (normative) Normative references to international publications with their corresp
17、onding European publications 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
18、 amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068 series Environmental testing EN 60068 series IEC 60359 2001 Electrical and electronic measurement equipm
19、ent - Expression of performance EN 60359 2002 IEC 61010-1 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements - - IEC 61187 (mod) - Electrical and electronic measuring equipment - Documentation EN 61187 + Corr. March - BS EN 62703
20、:2013 2 62703 IEC:2013 CONTENTS 1 Scope . 6 2 Normative references . 7 3 Terms, definitions, quantities and units . 7 3.1 Basic terms and definitions 7 3.2 General terms and definitions of devices and operations . 10 3.3 Terms and definitions for manners of expression . 11 3.4 Specific terms and def
21、initions for fluorometry 13 3.5 Specific terms and definitions for fluorometric oxygen analyzers . 15 3.6 Influence quantities for fluorometric oxygen analyzers . 17 3.7 Quantities and units 18 4 Procedure for specification . 19 4.1 Specification of values and ranges for fluorometric oxygen analyzer
22、s 19 4.2 Operation, storage and transport conditions 19 4.2.1 Rated operating conditions 19 4.2.2 Performance under rated operating conditions . 19 4.2.3 Performance under rated operating conditions while inoperative 19 4.2.4 Construction materials . 19 4.3 Performance characteristics requiring stat
23、ements of rated values 19 4.4 Uncertainty limits . 20 4.4.1 Limits of intrinsic uncertainty . 20 4.4.2 Interference uncertainties 20 4.4.3 Repeatability . 20 4.4.4 Drift . 20 5 Test methods 20 5.1 Test procedures 20 5.2 Influence quantities . 20 5.3 Operational conditions . 21 5.4 Calibration . 21 5
24、.5 Reference conditions . 21 5.5.1 Reference conditions during measurement of intrinsic uncertainty . 21 5.5.2 Reference conditions during measurement of influence quantity 21 5.6 Testing procedures 21 5.6.1 Intrinsic uncertainty . 21 5.6.2 Repeatability . 22 5.6.3 Output fluctuation 22 5.6.4 Drift
25、. 23 5.6.5 Delay time, rise time and fall time 24 5.6.6 Warm-up time 24 5.6.7 Procedure for determining interference uncertainty 24 5.6.8 Variations 25 Annex A (informative) Recommended standard values of influence Quantities affecting performance from IEC 60359 26 Annex B (informative) Performance
26、characteristics calculable from drift tests 32 Annex C (informative) Physico-chemical data of oxygen in water . 33 Bibliography 41 BS EN 62703:201362703 IEC:2013 3 Figure 1 Output fluctuations . 23 Table 1 Time intervals for statement of stability limits 23 Table A.1 Mains supply voltage . 30 Table
27、A.2 Mains supply frequency 30 Table A.3 Ripple of d.c. supply 31 Table B.1 Data: applied concentration 1 000 units . 32 Table C.1 Correlation conductivity-salinity . 33 Table C.2 Elevation barometric pressure (example) . 34 Table C.3 Solubility of oxygen in water exposed to water-saturated air at at
28、mospheric pressure (1 013 hPa) (Salinity see Table C.1) . 35 Table C.4 Solubility of oxygen in water vs. temperature and barometric pressure (lower range) 37 Table C.5 Solubility of oxygen in water vs. temperature and barometric pressure (upper range) 38 Table C.6 Pressure conversions 39 BS EN 62703
29、:2013 6 62703 IEC:2013 EXPRESSION OF PERFORMANCE OF FLUOROMETRIC OXYGEN ANALYZERS IN LIQUID MEDIA 1 Scope This International Standard is applicable to fluorometric oxygen analyzers used for the continuous determination of dissolved oxygen partial pressure or concentration. It applies to fluorometric
30、 oxygen 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
31、in principle fluorometric oxygen-analyzers are applicable in gaseous phases, the expression of performance in the gas-phase will not be subject of this standard. The sensor unit of a fluorometric oxygen analyzer being in contact with the media to be measured contains a luminophore in a polymer-membr
32、ane permeable for oxygen or within other oxygen permeable materials (or substrates). This standard specifies the terminology, definitions, requirements for statements by manufacturers and tests for fluorometric oxygen analyzers. This standard is in accordance with the general principles set out in I
33、EC 60359 and IEC 60770 series. This standard is applicable to analyzers specified for permanent installation installation in any location (indoors or outdoors) utilizing an on-line measurement technique. Safety requirements are dealt with in IEC 61010-1. Standard range of analogue d.c. current signa
34、ls used in process control systems are dealt with in IEC 60381-1. Specifications for values for the testing of influence quantities can be found in IEC 60654 series. Requirements for documentation to be supplied with instruments are dealt with in IEC 61187. Requirements for general principles concer
35、ning quantities, units and symbols are dealt with in ISO 80000-1:2009. The object of IEC 62703 is: to specify the general aspects in the terminology and definitions related to the performance of fluorometric oxygen analyzers used for the continuous determination of dissolved oxygen partial pressure
36、or concentration in liquid media; to unify methods used in making and verifying statements on the functional performance of such analyzers; to specify which tests should be performed in order to determine the functional performance and how such tests should be carried out; to provide basic documents
37、 to support the application of standards of quality assurance within ISO 9001. BS EN 62703:201362703 IEC:2013 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 e
38、dition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068 (all parts), Environmental testing IEC 60359:2001, Electrical and electronic measurement equipment Expression of performance IEC 61010-1, Safety requirements for
39、electrical equipment for measurement, control and laboratory use Part 1: General requirements IEC 61187, Electrical and electronic measuring equipment Documentation 3 Terms, definitions, quantities and units For the purposes of this document, the following terms, definitions, quantities and units ap
40、ply. NOTE Terms and definitions are taken partially from IEC 60359:2001and IEC 61207-1:2010. 3.1 Basic terms and definitions 3.1.1 measurand quantity subjected to measurement, evaluated in the state assumed by the measured system during the measurement itself Note 1 to entry: The value assumed by a
41、quantity subjected to measurement when it is not interacting with the measuring instrument may be called unperturbed value of the quantity. Note 2 to entry: The unperturbed value and its associated uncertainty can only be computed through a model of the measured system and of the measurement interac
42、tion with the knowledge of the appropriate metrological characteristics of the instrument that may be called instrumental load. 3.1.2 result of a measurement set of values attributed to a measurand, including a value, the corresponding uncertainty and the unit of measurement Note 1 to entry: The mid
43、-value of the interval is called the value (see 3.1.3) of the measurand and its half-width the uncertainty (see 3.1.4). Note 2 to entry: The measurement is related to the indication (see 3.1.5) given by the instrument and to the values of correction obtained by calibration. Note 3 to entry: The inte
44、rval can be considered as representing the measurand provided that it is compatible with all other measurements of the same measurand. Note 4 to entry: The width of the interval, and hence the uncertainty, can only be given with a stated level of confidence (see 3.1.4, NOTE 1). SOURCE: IEC 60050-300
45、:2001, 311-01-01, modified revision of the definition and the notes 3.1.3 measure-value mid element of the set assigned to represent the measurand BS EN 62703:2013 8 62703 IEC:2013 Note 1 to entry: The measure-value is no more representative of the measurand than any other element of the set. It is
46、singled out merely for the convenience of expressing the set in the format V U, where V is the mid element and U the half-width of the set, rather than by its extremes. The qualifier “measure-“ is used when deemed necessary to avoid confusion with the reading-value or the indicated value. 3.1.4 unce
47、rtainty uncertainty of measurement parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand Note 1 to entry: The parameter can be, for example, a standard deviation (or a given multiple of it), or a h
48、alf-width of an interval having a stated level of confidence. Note 2 to entry: Uncertainty of measurement comprises, in general, many components. Some of these components can be evaluated from the statistical distribution of the results of a series of measurements and can be characterized by experim
49、ental standard deviations. The other components, which can also be characterized by standard deviations, are evaluated from the assumed probability distributions based on experience or other information. Note 3 to entry: It is understood that the result of the measurement is the best estimate of the value of the measurand, and that all components of uncertainty, including those arising from systematic effects, such as components associated with corrections and reference standards, contribute
