1、BS EN 15216:2007ICS 13.030.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDCharacterization ofwaste Determinationof total dissolved solids(TDS) in water andeluatesThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommitte
2、e on 31 May 2009 BSI 2009ISBN 978 0 580 55378 3Amendments/corrigenda issued since publicationDate CommentsBS EN 15216:2007National forewordThis British Standard is the UK implementation of EN 15216:2007.The UK participation in its preparation was entrusted to TechnicalCommittee B/508/3, Characteriza
3、tion of waste.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 provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer im
4、munityfrom legal obligations.BS EN 15216:2007EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15216October 2007ICS 13.030.20English VersionCharacterization of waste - Determination of total dissolvedsolids (TDS) in water and eluatesCaractrisation des dchets - Dtermination de laconcentration en mati
5、res solides dissoutes totales (TDS)de leau et des luatsCharakterisierung von Abfllen - Bestimmung desGesamtgehaltes an gelsten Feststoffen (TDS) in Wasserund EluatenThis European Standard was approved by CEN on 1 September 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulation
6、s which stipulate the conditions for giving 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
7、 Standard exists in three official versions (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
8、standards bodies of 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
9、Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15216:2007: EBS EN
10、15216:2007EN 15216:2007 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Terms and definitions .5 3 Principle5 4 Sample storage and preparation5 5 Equipment 5 6 Procedure .6 7 Calculation of results 6 8 Quality control6 9 Performance characteristics 7 10 Test report 7 Annex A (informative)
11、Summary of general requirements and recommendations .8 Bibliography 9 BS EN 15216:2007EN 15216:2007 (E) 3 Foreword This document (EN 15216:2007) has been prepared by Technical Committee CEN/TC 292 “Characterization of waste”, the secretariat of which is held by NEN, in cooperation with CEN/TC 230. T
12、his 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 April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. Attention is drawn to the possibility that some of the
13、 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement th
14、is 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and the
15、 United Kingdom. BS EN 15216:2007EN 15216:2007 (E) 4 Introduction Total dissolved solids are a common sum parameter which is in use in water analysis and in analysis of eluates. TC 292 and TC 230 cooperated on this item to create one horizontal standard which is of most practical use for laboratorie
16、s. BS EN 15216:2007EN 15216:2007 (E) 5 1 Scope This European standard specifies a method for the determination of total dissolved solids (TDS) in water and eluates, provided they are not volatile under the conditions specified or that they do not release water molecules from hydration. It applies to
17、 water and eluates containing more than 200 mg/l of total dissolved solids. Samples with lower amounts of dissolved solids can be analyzed by repetition of the drying step. 2 Terms and definitions For the purposes of this document, the following term and definition applies. 2.1 total dissolved solid
18、s TDS TDSmass of dissolved constituents per unit volume of water remaining after a specified filtering and drying process NOTE TDS is expressed in milligrams per litre. 3 Principle The test sample is filtered and then dried in a dish to a constant mass in an oven at (105 3) C. 4 Sample storage and p
19、reparation During storage, the laboratory sample may be subject to changes which are liable to influence the analysis result. If storage is necessary, samples shall be kept at (4 2) C. NOTE Freezing should be avoided due to risk of formation of precipitation. It is recommended to carry out the test
20、immediately after sampling of the water sample or preparation of the eluate. 5 Equipment 5.1 Drying system thermostatically controlled and capable of maintaining a temperature of (105 3) C; e.g. drying oven, infrared system. 5.2 Desiccator with an active drying agent such as silica gel. 5.3 Analytic
21、al balance with an accuracy of 1 mg or better. 5.4 Membrane filter (porosity of 0,45 m). 5.5 Filtration apparatus. 5.6 Evaporation dish or crucible. Temperature tolerant laboratory vessel withstanding 105 C. Suitable materials are glass, ceramic, porcelain, aluminium and other materials inert to the
22、 test portion. BS EN 15216:2007EN 15216:2007 (E) 6 6 Procedure Filter the test sample through the membrane filter as specified in 5.4 unless it has been membrane filtered before (e. g. eluates prepared according to EN 12457). Dry the dish, for example in the oven, at (105 3) C and weigh to the neare
23、st 1 mg (to obtain ma) after cooling to ambient temperature in the desiccator. Homogenise and transfer a proper aliquot (VFB) if necessary in stages, into the dish to ensure that not less than 20 mg and not more than 1 000 mg of dry mass, mD, remains after evaporation to dryness. Evaporate the sampl
24、e to dryness by a drying system according to 5.1 and weigh to the nearest 1 mg (to obtain mb) after cooling to ambient temperature in the desiccator. The mass of the dry matter, mD, shall be considered constant if, after drying for a further half-hour period, the mass obtained does not differ by mor
25、e than 0,5 % of the previous value or 2 mg whichever is the greater. Otherwise, drying shall be repeated until constant mass has been reached. NOTE If a constant value is not obtained even after drying for a third time, record the value determined last and note this in the test report. 7 Calculation
26、 of results Calculate the total dissolved solids from equation (1): FBDTDSVm= (1) with mD= mb mawhere TDSis the concentration of total dissolved solids, in mg/l; mDis the mass of the dry matter, in mg; mais the mass of the empty dish, in mg; mbis the mass of the dish containing the dry matter, in mg
27、; VFBis the volume of the filtered test sample taken, in l. Values shall be rounded to the nearest 1 mg/l. 8 Quality control Where uncertainty exists about the homogeneity or behaviour of the sample, it is recommended that the analysis is carried out in duplicate. BS EN 15216:2007EN 15216:2007 (E) 7
28、 9 Performance characteristics The method performance characteristics given in Table 1 have been established in a European intercomparison study on two surface water samples, two waste water samples and two eluates, carried out in 2006. Table 1 Performance characteristics for the determination of to
29、tal dissolved solids in water and eluates Material p N O % Mean mg/l Sr% SR% Surface water A 17 34 0 478 2,15 4,49 Surface water B 17 34 0 3810 0,39 2,53 Waste water A 17 34 0 27300 1,34 4,33 Waste water B 17 34 0 4840 1,28 5,55 Eluate A 17 34 0 4090 1,74 6,27 Eluate B 17 34 0 3440 0,71 3,16 p is nu
30、mber of participating laboratories N is the number of outlier-free individual analytical results O is the percentage of outliers Sris the estimate of the relative repeatability standard deviation SRis the estimate of the relative reproducibility standard deviation 10 Test report The test report shal
31、l contain at least the following details: a) reference to this European standard; b) all data which are necessary to identify the sample; c) calculated concentration of total dissolved solids; d) details of all procedural steps which deviate from this standard together with all circumstances that ma
32、y have influenced the results; e) type of drying procedure. BS EN 15216:2007EN 15216:2007 (E) 8 Annex A (informative) Summary of general requirements and recommendations Purpose of this summary is to support the organization of sampling and sample pre-treatment processes. The information given shoul
33、d be helpful to prepare a sampling plan. Requirements not mentioned in the normative part of this document are considered as recommendations. Table A.1 Matrix restrictions Water and eluates. Typical working range Above 100 mg/l; lower values possible by repetition. Sampling instruments Any instrumen
34、t that does not release soluble solids. Bottle pre-treatment Clean and dry. Bottle material Any bottle that does not release soluble solids. Transport conditions Dark and cool. Preservation Cooling at about 4 C. Storage conditions At 4 C in the dark not longer than 1 week; longer storage not recomme
35、nded. Required amount Depends on expected results. For 1 000 mg/l TDS about 250 ml of sample are sufficient. Test portion Typically 100 ml. BS EN 15216:2007EN 15216:2007 (E) 9 Bibliography 1 EN 12457 (all parts), Characterization of waste Leaching Compliance test for leaching of granular waste mater
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