SIST EN 15216:2022

Environmental matrices - Determination of total dissolved solids (TDS) in water and eluates

This document specifies a method for the determination of total dissolved solids (TDS) in water and eluates (see Annex A), 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 100 mg/l of total dissolved solids. Samples with lower amounts of dissolved solids can be analysed by repetition of the drying step.

Umweltrelevante Matrizes - Bestimmung des Gesamtgehaltes an gelösten Feststoffen (TDS) in Wasser und Eluaten

Dieses Dokument legt ein Verfahren zur Bestimmung des Gesamtgehaltes an gelösten Feststoffen (TDS) in Wasser und Eluaten fest (siehe Anhang A), sofern sie nicht unter den angegebenen Bedingungen flüchtig sind bzw. keine Wassermoleküle aus Kristallwasser freisetzen. Das Dokument gilt für Wasser und Eluate mit einem Gesamtgehalt an gelösten Feststoffen von mehr als 100 mg/l. Proben mit niedrigeren Gehalten an gelösten Feststoffen können durch Wiederholung des Trockenschritts analysiert werden.

Matrices environnementales - Détermination de la concentration en matières solides dissoutes totales (TDS) de l'eau et des éluats

Le présent document spécifie une méthode permettant de déterminer la concentration en matières solides dissoutes totales (TDS) dans l’eau et les éluats (voir l’Annexe A) pourvu que ces matières ne soient pas volatiles dans les conditions spécifiées ou qu’elles ne relarguent pas de molécules d’eau d’hydratation. Il s’applique à l’eau et aux éluats contenant plus de 100 mg/l de matières solides dissoutes totales. Les échantillons contenant des quantités moindres de matières solides dissoutes peuvent être analysés en répétant l’étape de dessiccation.

Matriksi v okolju - Določanje celotnih trdnih raztopljenih snovi (TDS) v vodi in izlužkih

Ta evropski standard določa metodo za določevanje celotnih trdnih raztopljenih snovi (TDS) v vodi in izlužkih, če niso hlapni pod določenimi pogoji oziroma se pri njihovi hidrataciji ne sproščajo molekule vode. Uporablja se za vodo in izlužke, ki vsebujejo več kot 200 mg/l skupnih trdnih raztopljenih snovi. Vzorce z nižjo vsebnostjo trdnih raztopljenih snovi je mogoče analizirati s ponovitvijo postopka sušenja.

General Information

• Status: Published
• Public Enquiry End Date: 03-Nov-2019
• Publication Date: 13-Dec-2021
• ICS: 13.030.20 - Liquid wastes. Sludge
• Technical Committee: KAT - Soil quality
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Nov-2021
• Due Date: 03-Feb-2022
• Completion Date: 14-Dec-2021
• Ref Project: EN 15216:2021 - Environmental solid matrices - Determination of total dissolved solids (TDS) in water and eluates

Relations

• Replaces: SIST EN 15216:2008 - Characterization of waste - Determination of total dissolved solids (TDS) in water and eluates
• Effective Date: 01-Jan-2022

Overview

SIST EN 15216:2022 is a European Standard developed by CEN for the determination of total dissolved solids (TDS) in water and eluates. This method applies specifically to environmental solid matrices where dissolved solids are non-volatile under specified conditions and do not release water molecules from hydration. It is intended for water and eluate samples containing more than 100 mg/l of TDS. For samples with lower concentrations, the drying step can be repeated to achieve accurate measurement.

The standard replaces the earlier EN 15216:2007 version, introducing clarifications regarding drying procedures and handling sample inhomogeneity. It supports consistent and reliable analysis essential for water quality monitoring, environmental assessment, and regulatory compliance.

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Key Topics

• Scope & Applicability
  Suitable for environmental water matrices and eluates from solid samples with TDS >100 mg/l. Includes procedures for filtering, drying, and weighing to quantify dissolved solids.

• Principle of Measurement
  The test sample is filtered (using a 0.45 µm membrane) to remove suspended solids, then evaporated to dryness at 105 ± 5 °C. The residue mass represents total dissolved solids.

• Sample Handling
  Samples should be analyzed immediately or stored at 2–8 °C for no longer than one week to prevent changes affecting test accuracy.

• Equipment Requirements
  Includes a drying oven or infrared drying system, desiccator with drying agent, precision analytical balance (1 mg accuracy), membrane filters, filtration apparatus, and an evaporation dish able to withstand required temperatures.

• Calculation Method
  The concentration of TDS (mg/l) is calculated by subtracting the dish mass before and after drying, divided by the volume of filtered sample tested, ensuring results are rounded to three significant figures.

• Quality Control
  Drying continues until constant mass is achieved (mass change <0.5% or 2 mg). Duplicate testing is recommended if sample inhomogeneity is suspected.

• Reporting Requirements
  Test reports must reference SIST EN 15216:2022, sample identification, calculated TDS concentration, any procedural deviations, and drying method details when alternatives to standard drying ovens are used.

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Applications

• Environmental Monitoring
  Measurement of TDS in surface waters, groundwater, and eluates from solid waste matrices to assess pollution levels and natural water quality.

• Wastewater Treatment and Compliance
  Determining dissolved solids in wastewater influents and effluents to monitor treatment efficiency and ensure regulatory standards are met.

• Soil and Waste Leachate Analysis
  Analysis of eluates derived from solid matrices such as sludge, solid waste, or contaminated soils, supporting environmental risk assessments and remediation strategies.

• Industrial Water Quality Control
  Ensuring water used in industrial processes meets required purity specifications by monitoring dissolved solids content.

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Related Standards

• EN 12457 Series
  Compliance tests for leaching of granular waste materials and sludges, referenced when preparing eluates for TDS determination.

• ISO and IEC Terminology Resources
  Utilize ISO Online Browsing Platform and IEC Electropedia for standardized definitions related to water quality and solid matrices.

• Other Water Quality Testing Methods
  Complementary standards covering specific parameters such as dissolved oxygen, turbidity, and chemical oxygen demand (COD) support comprehensive water characterization.

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Keywords: SIST EN 15216:2022, total dissolved solids, TDS determination, water analysis, environmental matrices, eluates, CEN standard, water quality testing, wastewater analysis, drying method, filtration procedure, environmental monitoring, solid matrices analysis.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2022
Nadomešča:
SIST EN 15216:2008
Matriksi z vidika okolja - Določevanje celotnih trdnih raztopljenih snovi (TDS) v
vodi in izlužkih
Environmental matrices - Determination of total dissolved solids (TDS) in water and
eluates
Umweltrelevante Matrizes - Bestimmung des Gesamtgehaltes an gelösten Feststoffen
(TDS) in Wasser und Eluaten
Matrices environnementales - Détermination de la concentration en matières solides
dissoutes totales (TDS) de l'eau et des éluats
Ta slovenski standard je istoveten z: EN 15216:2021
ICS:
13.030.20 Tekoči odpadki. Blato Liquid wastes. Sludge
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15216
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 13.030.20 Supersedes EN 15216:2007
English Version
Environmental solid matrices - Determination of total
dissolved solids (TDS) in water and eluates
Matrices environnementales solides - Détermination Umweltrelevante Matrizes - Bestimmung des
de la concentration en matières solides dissoutes Gesamtgehaltes an gelösten Feststoffen (TDS) in
totales (TDS) de l'eau et des éluats Wasser und Eluaten
This European Standard was approved by CEN on 11 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which 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 European 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 the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15216:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Sample storage and preparation . 5
6 Equipment . 5
7 Procedure. 6
8 Calculation of results . 6
9 Test report . 7
Annex A (informative) Performance characteristics . 8
Bibliography . 9

European foreword
This document (EN 15216:2021) has been prepared by Technical Committee CEN/TC 444
“Environmental characterization of solid matrices”, the secretariat of which is held by NEN.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15216:2007.
In comparison with EN 15216:2007, the following changes have been made:
— Textual changes to clarify the procedure after a third weighing and in case of observed
inhomogeneity.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria,
...

SLOVENSKI STANDARD
01-januar-2022
Nadomešča:
SIST EN 15216:2008
Matriksi v okolju - Določanje celotnih trdnih raztopljenih snovi (TDS) v vodi in
izlužkih
Environmental matrices - Determination of total dissolved solids (TDS) in water and
eluates
Umweltrelevante Matrizes - Bestimmung des Gesamtgehaltes an gelösten Feststoffen
(TDS) in Wasser und Eluaten
Matrices environnementales - Détermination de la concentration en matières solides
dissoutes totales (TDS) de l'eau et des éluats
Ta slovenski standard je istoveten z: EN 15216:2021
ICS:
13.030.20 Tekoči odpadki. Blato Liquid wastes. Sludge
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15216
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 13.030.20 Supersedes EN 15216:2007
English Version
Environmental solid matrices - Determination of total
dissolved solids (TDS) in water and eluates
Matrices environnementales solides - Détermination Umweltrelevante Matrizes - Bestimmung des
de la concentration en matières solides dissoutes Gesamtgehaltes an gelösten Feststoffen (TDS) in
totales (TDS) de l'eau et des éluats Wasser und Eluaten
This European Standard was approved by CEN on 11 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which 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 European 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 the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15216:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Sample storage and preparation . 5
6 Equipment . 5
7 Procedure. 6
8 Calculation of results . 6
9 Test report . 7
Annex A (informative) Performance characteristics . 8
Bibliography . 9

European foreword
This document (EN 15216:2021) has been prepared by Technical Committee CEN/TC 444
“Environmental characterization of solid matrices”, the secretariat of which is held by NEN.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15216:2007.
In comparison with EN 15216:2007, the following changes have been made:
— Textual changes to clarify the procedure after a third weighing and in case of observed
inhomogeneity.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Bel
...