1、January 2008DEUTSCHE NORM English price group 8No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.030.20!$L*(“1410705w
2、ww.din.deDDIN EN 15216Characterization of waste Determination of total dissolved solids (TDS) in water and eluatesEnglish version of DIN EN 15216:2008-01Charakterisierung von Abfllen Bestimmung des Gesamtgehaltes an gelsten Feststoffen (TDS) in Wasser und EluatenEnglische Fassung DIN EN 15216:2008-0
3、1www.beuth.deDocument comprises 11 pagesDIN EN 15216:2008-01 2 National foreword This standard has been prepared by Technical Committee CEN/TC 292 “Characterization of waste” (Secretariat: NEN, Netherlands). The preliminary work was done by Working Group 5 “Analysis of waste Selected group parameter
4、s” of CEN/TC 292. The responsible German body involved in its preparation was the Normenausschuss Wasserwesen (Water Practice Standards Committee), Technical Committee 119-01-02-02 UA Chemische Verfahren. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15216October 2007ICS 13.030.20English Version
5、Characterization of waste - Determination of total dissolvedsolids (TDS) in water and eluatesCaractrisation des dchets - Dtermination de laconcentration en matires solides dissoutes totales (TDS)de leau et des luatsCharakterisierung von Abfllen - Bestimmung desGesamtgehaltes an gelsten Feststoffen (
6、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 Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists
7、 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 versions (English, French, German). A version in any other language made by translationunder the responsi
8、bility 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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland,
9、 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 NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart
10、, 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: EEN 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
11、Equipment 5 6 Procedure .6 7 Calculation of results 6 8 Quality control6 9 Performance characteristics 7 10 Test report 7 Bibliography 9 Annex A (informative) Summary of general requirements and recommendations .8 DIN EN 15216:2008-01 EN 15216:2007 (E) 3 Foreword This document (EN 15216:2007) has be
12、en prepared by Technical Committee CEN/TC 292 “Characterization of waste”, the secretariat of which is held by NEN, in cooperation with CEN/TC 230. 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
13、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 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
14、 rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of 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
15、, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15216:2008-01 EN 15216:2007 (E) 4 Introduction Total dissolved solids are a common sum parameter which is in use in water analy
16、sis 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 laboratories. DIN EN 15216:2008-01 EN 15216:2007 (E) 5 1 Scope This European standard specifies a method for the determination of total dissolved solids (TDS
17、) 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 water and eluates containing more than 200 mg/l of total dissolved solids. Samples with lower amounts of dissolved solids can be analyzed by
18、 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 solids TDS TDSmass of dissolved constituents per unit volume of water remaining after a specified filtering and drying process NOTE TDS is express
19、ed 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 preparation During storage, the laboratory sample may be subject to changes which are liable to influence the analysis result. If storage is n
20、ecessary, 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 immediately after sampling of the water sample or preparation of the eluate. 5 Equipment 5.1 Drying system thermostatically controlled and ca
21、pable 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 Analytical 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 cr
22、ucible. Temperature tolerant laboratory vessel withstanding 105 C. Suitable materials are glass, ceramic, porcelain, aluminium and other materials inert to the test portion. DIN EN 15216:2008-01 EN 15216:2007 (E) 6 6 Procedure Filter the test sample through the membrane filter as specified in 5.4 un
23、less 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 nearest 1 mg (to obtain ma) after cooling to ambient temperature in the desiccator. Homogenise and transfer a proper aliquot (VFB) if necessa
24、ry 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 sample 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 th
25、e 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 more than 0,5 % of the previous value or 2 mg whichever is the greater. Otherwise, drying shall be repeated until constant mass has been re
26、ached. 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 of results Calculate the total dissolved solids from equation (1): FBDTDSVm= (1) with mD= mb mawhere TDSis the concentration of total d
27、issolved 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; 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 uncer
28、tainty exists about the homogeneity or behaviour of the sample, it is recommended that the analysis is carried out in duplicate. DIN EN 15216:2008-01 EN 15216:2007 (E) 7 9 Performance characteristics The method performance characteristics given in Table 1 have been established in a European intercom
29、parison 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 total 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
30、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 number of participating laboratories N is the number of outlier-free individual analytical results O is the percentage of outliers Sr
31、is the estimate of the relative repeatability standard deviation SRis the estimate of the relative reproducibility standard deviation 10 Test report The test report shall contain at least the following details: a) reference to this European standard; b) all data which are necessary to identify the s
32、ample; c) calculated concentration of total dissolved solids; d) details of all procedural steps which deviate from this standard together with all circumstances that may have influenced the results; e) type of drying procedure. DIN EN 15216:2008-01 EN 15216:2007 (E) 8 Annex A (informative) Summary
33、of general requirements and recommendations Purpose of this summary is to support the organization of sampling and sample pre-treatment processes. The information given should be helpful to prepare a sampling plan. Requirements not mentioned in the normative part of this document are considered as r
34、ecommendations. Table A.1 Matrix restrictions Water and eluates. Typical working range Above 100 mg/l; lower values possible by repetition. Sampling instruments Any instrument that does not release soluble solids. Bottle pre-treatment Clean and dry. Bottle material Any bottle that does not release s
35、oluble 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 recommended. Required amount Depends on expected results. For 1 000 mg/l TDS about 250 ml of sample are sufficient. Test portion Typically 100 ml. DIN EN 15216:2008-01 EN 15216:2007 (E) 9 Bibliography 1 EN 12457 (all parts), Characterization of waste Leaching Compliance test for leaching of granular waste materials and sludges DIN EN 15216:2008-01
