EN 16479-1-2014 en Water quality - Performance requirements and conformity test procedures for water monitoring equipment - Automated sampling devices (samplers) for water and wast.pdf

1、BSI Standards PublicationBS EN 16479:2014Water quality Performancerequirements and conformitytest procedures for watermonitoring equipment Automated sampling devices(samplers) for water and wastewaterBS EN 16479:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of

2、EN 16479:2014.The UK participation in its preparation was entrusted to TechnicalCommittee EH/3, Water quality.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users

3、 are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 75401 2ICS 13.060.45Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the

4、Standards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS EN 16479:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16479 July 2014 ICS 13.060.45 English Version Water quality - Performance requirements and conformity test procedures for

5、water monitoring equipment - Automated sampling devices (samplers) for water and waste water Qualit de leau - Exigences de performance et modes opratoires dessai de conformit pour les quipements de surveillance de leau - Dispositifs dchantillonnage automatiques (chantillonneurs) pour leau et les eau

6、x uses Wasserbeschaffenheit - Leistungsanforderungen und Konformittsprfungen fr Gerte zum Wassermonitoring - Automatische Probenahmegerte fr Wasser und Abwasser This European Standard was approved by CEN on 22 May 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which

7、stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This Europ

8、ean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are

9、 the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Rom

10、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and b

11、y any means reserved worldwide for CEN national Members. Ref. No. EN 16479:2014 EBS EN 16479:2014EN 16479:2014 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5 2 Normative References 5 3 Terms and definitions . 5 4 General requirements for samplers 7 5 Performance requirements 9 5.1 Sample

12、volume 9 5.2 Sampling principles 9 5.3 Sample line velocity 10 5.4 Power supply . 10 5.5 Sample integrity 10 5.6 Sample timing error 10 5.7 Effect of ambient air temperature 10 6 Conformity testing 11 6.1 General requirements . 11 6.2 Test conditions 11 6.3 Verification by inspection 12 6.4 Performa

13、nce tests . 12 Annex A (normative) Evaluation of conformity test data 19 A.1 Sample volume error 19 A.2 Sample line velocity 21 A.3 Sample integrity 21 A.3.1 Calculation of results based on the analysis of variance . 21 A.3.2 Notation 21 A.3.3 Calculations . 22 A.3.4 Interpretation of the results .

14、23 A.4 Sampler timing error . 25 A.5 Ambient air temperature effects 25 Annex B (informative) Example procedure for demonstrating sample integrity for samplers to be used for Urban Waste Water Treatment Directive (UWWTD) sampling 27 B.1 General . 27 B.2 Test fluid 27 B.3 Sample collection 27 B.4 Sam

15、ple volume 28 B.5 Sample integrity 28 B.6 Determination of conformance 28 Annex C (informative) Example format for the report 29 Bibliography . 31 BS EN 16479:2014EN 16479:2014 (E) 3 Foreword This document (EN 16479:2014) has been prepared by Technical Committee CEN/TC 230 “Water analysis”, the secr

16、etariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. Attention is dra

17、wn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document was submitted to the Formal Vote with the reference FprEN 16479-1. According to the CEN-

18、CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary

19、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16479:2014EN 16479:2014 (E) 4 Introduction This European Standard is a product standard for automated

20、sampling devices (samplers) for water and waste water. It defines general requirements, performance requirements, and procedures for the conformity testing of samplers. Samplers that are shown, by means of the tests, to conform with the specified requirements are considered to be fit for purpose. Ho

21、wever, this European Standard does not cover the installation and on-going use of samplers. The requirements of this European Standard are intended to be independent of measurement technology and applicable to all automated sampling devices. Water monitoring equipment is widely used for compliance m

22、onitoring purposes under national and European regulations. This European standard supports the requirements of the following EU Directives: Industrial Emissions Directive (2010/75/EU) 6. Urban Waste Water Treatment Directive (UWWTD) (91/271/EEC and 98/15/EEC) 7. Water Framework Directive (2000/60/E

23、C) 8. Marine Strategy Framework Directive (2008/56/EC) 9. BS EN 16479:2014EN 16479:2014 (E) 5 1 Scope This European Standard defines general requirements, performance requirements and conformity test procedures for automated sampling devices (samplers) for water and waste water that: sample water an

24、d waste water from non-pressurized (i. e. open to atmosphere) channels or vessels; sample over extended periods to collect discrete or composite samples based on time, event or flow proportional sampling. Specific sample integrity requirements are defined for samplers to be used for the collection o

25、f samples of final effluent or influent for the purpose of monitoring the performance of waste water treatment works, as required under the Urban Waste Water Treatment Directive (UWWTD). Samplers to be used for other industrial applications do not have to be assessed against these specific sample in

26、tegrity requirements. This European Standard does not cover the installation and on-going use of samplers. 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 editio

27、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 5667-3:2012, Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-3:2012) EN ISO/IEC 17025, General requirements for the competence of

28、testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 automated sampling device for water and waste water automated sampler equipment for collecting and storing samples of water or waste water fo

29、r subsequent analysis 3.2 bias estimate of a systematic measurement error Note 1 to entry: The systematic measurement error is a component of measurement error that in replicate measurements remains constant or varies in a predictable manner. SOURCE: ISO/IEC Guide 99:2007, 2.18, modified Note 1 to e

30、ntry has been added. 3.3 composite sample two or more samples or sub-samples, mixed together in appropriate known proportions (either discretely or continuously), from which the average result of a desired requirement may be obtained Note 1 to entry: The proportions are usually based on time or flow

31、 measurements. SOURCE: ISO 6107-2:2006/AMD, 1:2012, 29 BS EN 16479:2014EN 16479:2014 (E) 6 3.4 constant volume variable time sampling C.V.V.T flow proportional sampling based on collecting equal volumes of sample at frequencies proportional to flow 3.5 constant time variable volume sampling C.T.V.V

32、flow proportional sampling based on collecting samples at fixed time intervals but where the volume of sample is varied in proportion to the flow 3.6 constant time constant volume sampling C.T.C.V equal volumes of sample or sub-sample collected at equal increments of time 3.7 determinand property/su

33、bstance that is required to be measured and to be reflected by/present in a calibration solution SOURCE: EN ISO 15839:2006, 3.13 3.8 discrete sample single sample taken from a body of water SOURCE: ISO 6107-2:2006, 40, modified “process, whereby” deleted 3.9 measurement error error of measurement er

34、ror measured quantity value minus a reference quantity value Note 1 to entry: The concept of “measurement error” can be used both: a) when there is a single reference quantity value to refer to, which occurs if a calibration is made by means of a measurement standard with a measured quantity value h

35、aving a negligible measurement uncertainty or if a conventional quantity value is given, in which case the measurement error is known, and b) if a measurand is supposed to be represented by a unique true quantity value or a set of true quantity values of negligible range, in which case the measureme

36、nt error is not known. Note 2 to entry: Measurement error is not be confused with production error or mistake. SOURCE: ISO/IEC Guide 99:2007, 2.16 3.10 rated operating conditions minimum to maximum values of any environmental, fluid or electrical parameter within which the sampler is designed to ope

37、rate without adjustment and with errors within performance limits 3.11 lift height vertical distance between the surface of the fluid being sampled and the highest point to which the sample is lifted Note 1 to entry: Sometimes called “sampling head” or “suction height”. BS EN 16479:2014EN 16479:2014

38、 (E) 7 Note 2 to entry: The maximum lift height for samplers using vacuum pumps (e.g. pneumatic samplers and peristaltic samplers) is set to an atmospheric pressure of 1 000 mbar. At low atmospheric pressure the maximum lift height will be consequentially lower. 3.12 precision closeness of agreement

39、 between indications or measured quantity values obtained by replicate measurements on the same or similar objects under specified conditions Note 1 to entry: Measurement precision is usually expressed numerically by measures of imprecision, such as standard deviation, variance, or coefficient of va

40、riation under specified conditions of measurement. Note 2 to entry: The “specified conditions” can be, for example, repeatability conditions of measurement, intermediate precision conditions of measurement, or reproducibility conditions of measurement (see ISO 5725-3:1994). Note 3 to entry: Measurem

41、ent precision is used to define measurement repeatability, intermediate measurement precision, and measurement reproducibility. Note 4 to entry: Sometimes “measurement precision” is erroneously used to mean measurement accuracy. SOURCE: ISO/IEC Guide 99:2007, 2.15 3.13 sampling interval time between

42、 successive sampling events 3.14 sampling line conduit from intake point to inlet of dosing system SOURCE: ISO 6107-2:2006/AMD, 1:2012, 115, modified “sampling probe” was replaced by “intake point” and delivery point was replaced by “inlet of dosing system” 4 General requirements for samplers See 6.

43、3 for details on verification by inspection. A sampler shall: a) have an unique designation that unambiguously identifies it (e.g. model, serial number); b) be designed (including its operating methodology) and constructed to ensure that the composition of the sample is, as far as is practicable, no

44、t altered by the sampling procedure; It can be impracticable to prevent the loss of volatile substances during sampling with vacuum and peristaltic samplers. c) have a rated maximum lift height at which all of the performance requirements of this standard are fulfilled. The rated maximum lift height

45、 shall be inscribed on the sampler or declared in the operating manual published by the manufacturer; Conformity testing of the sampler shall be based on a range of lift heights up to and including the samplers rated maximum lift height. d) have provision for the user to set the volume of a discrete

46、 sample; e) have rated minimum and maximum sample volumes of a discrete sample inscribed on the sampler or declared in the operating manual published by the manufacturer; BS EN 16479:2014EN 16479:2014 (E) 8 Unless otherwise stated conformity testing of the sampler shall be based on a sample volume o

47、f 250 ml or the rated maximum sample volume, if smaller. f) have the stated capacities, for any integrated sample storage, both by number(s) and volume(s) of individual bottles and of a composite container, inscribed on the sampler or declared in the operating manual published by the manufacturer; g

48、) be capable of collecting a series of samples, on a timed, event and/or a flow proportional basis. Samples can be collected and stored in individual bottles or a single composite sample bottle; h) have its possible sampling intervals inscribed on the sampler or declared in the operating manual publ

49、ished by the manufacturer; i) have provision for the user to set the sample interval as a minimum in the range 5 min to 1 h with increments of 1 min, for time proportional samplers; j) have provision for the sample interval (in the case of C.V.V.T. sampling) or the sample volume (in the case of C.T.V.V. sampling) to be set on the basis of a flow signal (e.g. pulse or analogue) from a flow meter. For pulse inputs, the relationship between pulse input and sample interval or volume should be adjustable as a minimum over the