1、BRITISH STANDARDBS EN ISO 15839:2006Incorporating amendment no. 1 (renumbers BS ISO 15839:2003 as BS EN ISO 15839:2006)Water quality On-line sensors/analysing equipment for water Specifications and performance testsThis European Standard EN ISO 15839:2006 has the status of a British StandardICS 13.0
2、60.01; 13.060.45g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 15839:2006This British Standard was published under the authority of the S
3、tandards Policy and Strategy Committee on 14 January 2004 BSI 2006ISBN 0 580 43263 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN ISO 15839:2006. It is identical with ISO 15839:2003The UK participation in its preparation was entrusted by Technical Com
4、mittee EH/3, Water quality, to Subcommittee EH/3/2, Physical, chemical and biochemical methods.A list of organizations represented on EH/3/2 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for
5、its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments16752 30 November 2006 Renumbers BS ISO 15839:2003 as BS EN ISO 15839:2006EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15839Augu
6、st 2006ICS 13.060.45; 13.060.01English VersionWater quality - On-line sensors/analysing equipment for water -Specifications and performance tests (ISO 15839:2003)Qualit de leau - Matriel danalyse/capteurs directs pourleau - Spcifications et essais de performance (ISO15839:2003)Wasserbeschaffenheit -
7、 Online-Sensoren/Analysengertefr Wasser - Spezifikationen und Leistungsprfungen (ISO15839:2003)This European Standard was approved by CEN on 10 August 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the st
8、atus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A v
9、ersion in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Eston
10、ia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHE
11、S KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15839:2006: EForeword The text of ISO 15839:2003 has been prepared by Technical Committee ISO/TC 147
12、“Water quality” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15839:2006 by Technical Committee CEN/TC 230 “Water analysis“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by pub
13、lication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imple
14、ment this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
15、 Kingdom. Endorsement notice The text of ISO 15839:2003 has been approved by CEN as EN ISO 15839:2006 without any modifications. EN ISO 15839:2006Reference numberISO 15839:2003(E)INTERNATIONAL STANDARD ISO15839First edition2003-10-15Water quality On-line sensors/analysing equipment for water Specifi
16、cations and performance tests Qualit de leau Matriel danalyse/capteurs directs pour leau Spcifications et essais de performance EN ISO 15839:2006ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 2 4 Determining on-line sensor/analysing equipment performanc
17、e characteristics An overview. 7 5 Determination of performance characteristics in the laboratory. 8 6 Determining performance characteristics in the field. 15 Annex A (informative) Manufacturer/supplier information. 20 Annex B (informative) On-line measurement chains 22 Annex C (informative) Recomm
18、ended test bench facilities . 23 Annex D (informative) Scheduling of tests 26 Annex E (informative) Examples of test reports 28 Bibliography . 30 EN ISO 15839:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member b
19、odies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental a
20、nd non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives
21、, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies ca
22、sting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15839 was prepared by Technical Committee ISO/TC 147, Water quality. EN ISO 15839:2
23、0061Water quality On-line sensors/analysing equipment for water Specifications and performance tests WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its
24、 use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard describes the performance testing of on-line sensors/analysing equipment for water. The standard is ap
25、plicable to most sensors/analysing equipment, but it is recognized that, for some sensors/analysing equipment, certain performance tests cannot be carried out. This International Standard defines an on-line sensor/analysing equipment for water quality measurements; defines terminology describing the
26、 performance characteristics of on-line sensors/analysing equipment; specifies the test procedures (for laboratory and field) to be used to evaluate the performance characteristics of on-line sensors/analysing equipment. 2 Normative references The following referenced documents are indispensable for
27、 the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results Part 1: General pri
28、nciples and definitions ISO 6879:1995, Air quality Performance characteristics and related concepts for air quality measuring methods ISO 8466-1:1990, Water quality Calibration and evaluation of analytical methods and estimation of performance characteristics Part 1: Statistical evaluation of the li
29、near calibration function ISO/TR 13530:1997, Water quality Guide to analytical quality control for water analysis EN ISO 15839:20062 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 accepted reference value value that serves as an agreed refer
30、ence value for comparison, and which is derived as: a) an assigned or certified value based on experimental work of some national or international organization; b) a consensus or certified value based on collaborative experimental work; c) a theoretical or established value based on scientific princ
31、iples; d) when a), b) and c) are not available, the expectation of the (measurable) quantity, i.e. the mean of a number of measurements. Adapted from ISO 5725-1:1994 3.2 accuracy closeness of agreement between a measured value and the accepted reference value NOTE The term accuracy, when applied to
32、a set of measured values, involves a combination of random components and a common systematic error or bias component. Adapted from ISO 5725-1:1994 3.3 analytical chain set of instruments and actions covering all the steps involved in determining a reference value in a field test, including sampling
33、, fractioning, conditioning, storage and transportation of the sample to the laboratory for analysis 3.4 availability measurement chain percentage of the full measurement period during which the measurement chain is available for making measurements NOTE The full measurement period is the period whi
34、ch includes all specified automatic or manual maintenance operations at least once cf. up-time (3.42) 3.5 bias consistent deviation of the measured value from an accepted reference value NOTE Bias is the total systematic error as contrasted to random error. There may be one or more systematic error
35、components contributing to the bias. A larger systematic difference from the accepted reference value is reflected by a larger bias value. Adapted from ISO 5725-1:1994 3.6 blank solution solution, free of determinand, to which the on-line sensor/analysing equipment is exposed in the same way as cali
36、bration or sample solutions NOTE The value of the measurement is known as the “blank value”. EN ISO 15839:200633.7 calibration solution solution containing a substance or mixture of substances giving a defined value of the determinand and used for calibration of the on-line sensor/analysing equipmen
37、t cf. reference material (3.30) 3.8 calibration procedure set of operations that establishes, under specified conditions, the relationship between the amount or quantity of calibrant and the response indicated by the on-line sensor/analysing equipment 3.9 coefficient of variation ratio of the standa
38、rd deviation of the on-line sensor/analysing equipment to the mean of the working range of the equipment Adapted from ISO 8466-1:1990 3.10 day-to-day repeatability precision under day-to-day repeatability conditions 3.11 day-to-day repeatability conditions conditions whereby independent test results
39、 are obtained with the same method on identical test items in the same laboratory by the same operator using the same equipment and reagents over several days 3.12 delay time time interval between the instant when the on-line sensor/analysing equipment is subjected to an abrupt change in determinand
40、 value and the instant when the readings pass (and remain beyond) 10 % of the difference between the initial and final value of the abrupt change NOTE For on-line sensor/analysing equipment with a sample-handling system the delay time frequently depends on the time needed to convey the sample from t
41、he sampling point to the analyser inlet. cf. response time (3.33) 3.13 determinand property/substance that is required to be measured and to be reflected by/present in a calibration solution 3.14 fall time difference between the response time and the delay time when the abrupt change in determinand
42、value is negative cf. delay time (3.12) and response time (3.33) 3.15 interference undesired output signal caused by a property(ies)/substance(s) other than the one being measured ASTM D 3864-96 3.16 interferent component of the sample, excluding the determinand, that affects the output signal EN IS
43、O 15839:20064 3.17 limit of detection LOD lowest value, significantly greater than zero, of a determinand that can be detected 3.18 limit of quantification LOQ lowest value of a determinand that can be determined with an acceptable level of accuracy and precision 3.19 linearity condition in which me
44、asurements made on calibration solutions having determinand values spanning the stated range of the on-line sensor/analysing equipment have a straight-line relationship with the calibration solution determinand values 3.20 long-term drift slope of the regression line derived from a series of differe
45、nces between reference and measurement values obtained during field testing, expressed as a percentage of the working range over a 24 h period 3.21 lowest detectable change LDC smallest significantly measurable difference between two measurements 3.22 period between maintenance operations time betwe
46、en successive maintenance operations on the measurement chain NOTE The shortest period between maintenance operations will typically be of the order of a few hours (between two automatic rinse operations). The longest period between maintenance operations will typically be of the order of a few mont
47、hs (between services). 3.23 measurement mean value of at least 10 consecutive readings cf. reading (3.29) 3.24 measurement chain set of instruments and actions that covers all the steps involved in measuring a determinand, including the on-line sensor/analysing equipment, sampling and pretreatment,
48、transportation and storage of the sample 3.25 memory effect temporary or permanent dependence of readings on one or several previous values of the determinand Adapted from ISO 6879:1995 3.26 on-line sensor/analysing equipment automatic measurement device which continuously (or at a given frequency)
49、gives an output signal proportional to the value of one or more determinands in a solution which it measures (see Annex B) 3.27 performance characteristics set of parameters describing the performance of the on-line sensor/analysing equipment and measurement chain EN ISO 15839:200653.28 precision the closeness of agreement between independent measured values obtained under stipulated conditions NOTE 1 Precision depends only on the distribution of random errors and does not relate to the true value or the specified v
