1、BS EN ISO11885:2009ICS 13.060.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDWater quality Determination ofselected elements byinductively coupledplasma opticalemission spectrometry(ICP-OES) (ISO11885:2007)This British Standardwas published under theauthority
2、 of the StandardsPolicy and StrategyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 53595 6Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 11885:2009National forewordThis British Standard is the UK implementation of EN ISO 11885:2009.It is identical to ISO 11885:2007. It supers
3、edes BS EN ISO 11885:1998which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/3/2, Physical chemical and biochemical methods.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport
4、 to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 11885May 2009ICS 13.060.50 Supersedes EN ISO 11885:1997 Engli
5、sh VersionWater quality - Determination of selected elements byinductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885:2007)Qualit de leau - Dosage dlments choisis parspectroscopie dmission optique avec plasma induit parhaute frquence (ICP-OES) (ISO 11885:2007)Wasserbeschaffenh
6、eit - Bestimmung von ausgewhltenElementen durch induktiv gekoppelte Plasma-Atom-Emissionsspektrometrie (ICP-OES) (ISO 11885:2007)This European Standard was approved by CEN on 14 May 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
7、ng this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versio
8、ns (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bul
9、garia, 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 Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZ
10、ATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 11885:2009: EBS EN ISO 11885:2009EN ISO 11885:2009 (E) 3 F
11、oreword The text of ISO 11885:2007 has been prepared by Technical Committee ISO/TC 147 “Water quality” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11885:2009 by Technical Committee CEN/TC 230 “Water analysis” the secretariat of which is held by DIN.
12、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 November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. Attention is drawn to the possibility that some
13、 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 supersedes EN ISO 11885:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations o
14、f the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slo
15、vakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11885:2007 has been approved by CEN as a EN ISO 11885:2009 without any modification. BS EN ISO 11885:2009ISO 11885:2007(E) ISO 2007 All rights reserved iiiContents Page Foreword iv Introduction v 1
16、 Scope 1 2 Normative references 1 3 Terms and definitions .2 4 Principle5 5 Recommended wavelengths, limits of quantification and important spectral interferences5 6 Interferences 9 7 Reagents.11 8 Apparatus .14 9 Sampling and preservation.15 10 Procedure .18 11 Expression of results 20 12 Test repo
17、rt 20 Annex A (informative) Special digestion methods 21 Annex B (informative) Precision data22 Annex C (informative) Description of the matrices of the samples used for the interlaboratory trial .26 Bibliography 28 BS EN ISO 11885:2009ISO 11885:2007(E) iv ISO 2007 All rights reservedForeword ISO (t
18、he International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). 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 commit
19、tee has been established has the right to be represented on that committee. International organizations, governmental and 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 electrotech
20、nical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 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
21、 bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting 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
22、 any or all such patent rights. ISO 11885 was prepared by Technical Committee ISO/TC 147, Water quality, Subcommittee SC 2, Physical, chemical and biochemical methods. This second edition cancels and replaces the first edition (ISO 11885:1996), which has been technically revised. BS EN ISO 11885:200
23、9ISO 11885:2007(E) ISO 2007 All rights reserved vIntroduction When applying this International Standard, it is necessary in each case, depending on the range to be tested, to determine if and to what extent additional conditions should be established. BS EN ISO 11885:2009BS EN ISO 11885:2009INTERNAT
24、IONAL STANDARD ISO 11885:2007(E) ISO 2007 All rights reserved 1Water quality Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) WARNING Persons using this International Standard should be familiar with normal laboratory practice. This Internation
25、al Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT It is absolutely essential that t
26、ests conducted according to this International Standard be carried out by suitably trained staff. 1 Scope This International Standard specifies a method for the determination of dissolved elements, elements bound to particles (“particulate”) and total content of elements in different types of water
27、(e.g. ground, surface, raw, potable and waste water) for the following elements: aluminium, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, chromium, cobalt, copper, gallium, indium, iron, lead, lithium, magnesium, manganese, molybdenum, nickel, phosphorus, potassium, seleniu
28、m, silicon, silver, sodium, strontium, sulfur, tin, titanium, tungsten, vanadium, zinc and zirconium. Taking into account the specific and additionally occurring interferences, these elements can also be determined in digests of water, sludges and sediments (for example, digests of water as specifie
29、d in ISO 15587-1 or ISO 15587-2). The method is suitable for mass concentrations of particulate matter in waste water below 2 g/l. The scope of this method may be extended to other matrices or to higher amounts of particulate matter if it can be shown that additionally occurring interferences are co
30、nsidered and corrected for carefully. It is up to the user to demonstrate the fitness for purpose. Recommended wavelengths, limits of quantification and important spectral interferences for the selected elements are given in Table 1. 2 Normative references The following referenced documents are indi
31、spensable for 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 Guide 30, Terms and definitions used in connection with reference materials ISO 3696, Wa
32、ter for analytical laboratory use Specification and test methods ISO 5667-1, Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques ISO 5667-3, Water quality Sampling Part 3: Guidance on the preservation and handling of water samples ISO 7027, Water qual
33、ity Determination of turbidity BS EN ISO 11885:2009ISO 11885:2007(E) 2 ISO 2007 All rights reservedISO 15587-1, Water quality Digestion for the determination of selected elements in water Part 1: Aqua regia digestion ISO 15587-2, Water quality Digestion for the determination of selected elements in
34、water Part 2: Nitric acid digestion 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 accuracy closeness of agreement between test result and the accepted reference value NOTE The term accuracy, when applied to a set of observed values, describ
35、es a combination of random error components and common systematic error components. Accuracy includes precision and trueness. 3.2 analyte element(s) to be determined 3.3 background equivalent concentration BEC elemental concentration required to produce an analyte signal with the same intensity as a
36、 background signal 3.4 calibration blank solution prepared in the same way as the calibration solution but leaving out the analyte 3.5 calibration solution solution used to calibrate the instrument, prepared from (a) stock solution(s) or from a certified standard 3.6 calibration check solution solut
37、ion of known composition within the range of the calibration solutions, but prepared independently 3.7 determination entire process from preparing the test sample solution up to and including measurement and calculation of the final result 3.8 instrument performance check solution solution used to d
38、etermine and control the instrument drift for relevant analytes 3.9 linearity straight line relationship between the (mean) result of measurement (signal) and the quantity (concentration) of the component to be determined BS EN ISO 11885:2009ISO 11885:2007(E) ISO 2007 All rights reserved 33.10 limit
39、 of detection XLDsmallest amount or concentration of an analyte in the test sample that can be reliably distinguished from zero NOTE The limit of detection shall be calculated as: LD 03X s= where XLDis the limit of detection; s0is the standard deviation of the outlier-free results of at least 3 meas
40、urements of a reagent blank solution (3.14) ISO 13530 3.11 limit of quantification XLQ the smallest amount or concentration of an analyte in the test sample which can be determined with a fixed precision EXAMPLE Relative standard deviation srel= 33,3 % LQ LD 039X Xs= ISO 13530 3.12 mean result mean
41、value of n results, calculated as intensity (ratio) or as mass concentration () NOTE The mass concentration is expressed in units of milligrams per litre, mg/l. 3.13 precision closeness of agreement between independent test results obtained under prescribed conditions NOTE Precision depends only on
42、the distribution of random errors and does not relate to true value or the specified value. 3.14 reagent blank solution prepared by adding to the solvent the same amounts of reagents as those added to the test sample solution (same final volume) 3.15 reproducibility precision under reproducibility c
43、onditions ISO 3534-2:2006, definition 3.3.10 3.16 reproducibility conditions observation conditions where independent test/measurement results are obtained with the same method on identical test/measurement items in different test or measurement facilities with different operators using different eq
44、uipment ISO 3534-2:2006, definition 3.3.11 BS EN ISO 11885:2009ISO 11885:2007(E) 4 ISO 2007 All rights reserved3.17 reproducibility standard deviation standard deviation of test results or measurement results obtained under reproducibility conditions ISO 3534-2:2006, definition 3.3.12 3.18 reproduci
45、bility limit R reproducibility critical difference for a specified probability of 95 % ISO 3534-2:2006, definition 3.3.14 3.19 repeatability precision under repeatability conditions ISO 3534-2:2006, definition 3.3.5 3.20 repeatability conditions observation conditions where independent test/measurem
46、ent results are obtained with the same method on identical test/measurement items in the same test or measuring facility by the same operator using the same equipment within short intervals of time ISO 3534-2:2006, definition 3.3.6 3.21 repeatability standard deviation standard deviation of test res
47、ults or measurement results obtained under repeatability conditions ISO 3534-2:2006, definition 3.3.7 3.22 repeatability limit r repeatability critical difference for a specified probability of 95 % ISO 3534-2:2006, definition 3.3.9 3.23 stock solution solution with accurately known analyte concentr
48、ation(s), prepared from chemicals with an appropriate purity NOTE Stock solutions are reference materials within the meaning of ISO Guide 30. 3.24 test sample prepared from the laboratory sample (for example by grinding, homogenizing) 3.25 test sample solution solution prepared with the fraction (te
49、st portion) of the test sample according to the appropriate specifications, such that it can be used for the envisaged measurement BS EN ISO 11885:2009ISO 11885:2007(E) ISO 2007 All rights reserved 53.26 total element concentration concentration of elements determined on an unfiltered sample following digestion or the sum of concentrations of elements as determined in the dissolved state (9.5.1) and bound in the particulate fraction (9.5.2) of a sample 3.27 trueness bias closeness of agreement
