EN 14997:2015
(Main)Characterization of waste - Leaching behaviour test - Influence of pH on leaching with continuous pH control
Characterization of waste - Leaching behaviour test - Influence of pH on leaching with continuous pH control
This European Standard specifies a method for the determination of the influence of pH on the leachability of inorganic constituents from a waste material. Approaching equilibrium as defined in this European Standard is established by continuous adjustment of the pH by addition of acid or base to reach desired pH values. This test method produces eluates, which are subsequently characterized physically and chemically.
This European Standard is a parameter specific test as specified in EN 12920. The application of this test method alone is not sufficient for the determination of the detailed leaching behaviour of a waste under specified conditions.
Charakterisierung von Abfällen - Untersuchung des Elutionsverhaltens - Einfluss des pH-Wertes auf die Elution bei kontinuierlicher pH-Wert-Kontrolle
Diese Europäische Norm legt ein Verfahren für die Bestimmung des Einflusses des pH Wertes auf die Eluierbarkeit von anorganischen Bestandteilen aus Abfall fest. Die Annäherung an das Gleichgewicht, wie es in dieser Europäischen Norm definiert ist, wird durch kontinuierliche Einstellung des pH-Wertes durch Zugabe von Säure oder Base hergestellt, um die gewünschten endgültigen pH Werte zu erreichen. Dieses Prüfverfahren führt zu Eluaten, die anschließend physikalisch und chemisch charakterisiert werden.
Diese Europäische Norm ist eine parameterspezifische Prüfung, wie in EN 12920 festgelegt. Die Anwendung nur dieses Prüfverfahrens ist für die Bestimmung des genauen Elutionsverhaltens eines Abfalls unter festgelegten Bedingungen nicht ausreichend.
Caractérisation des déchets - Essais de comportement à la lixiviation - Influence du pH sur la lixiviation avec contrôle continu du pH
La présente Norme européenne définit une méthode de détermination de l’influence du pH sur la lixiviabilité des constituants inorganiques d’un déchet. L’approche de l'état d’équilibre tel que défini dans la présente Norme européenne s’obtient par un ajustement permanent du pH en ajoutant un acide ou une base pour atteindre les valeurs de pH souhaitées. Cette méthode d’essai produit des éluats qui sont ensuite caractérisés du point de vue physicochimique.
La présente Norme européenne est un essai paramétrique, tel que spécifié dans l'EN 12920. Cette méthode d’essai n’est pas suffisante, à elle seule, pour déterminer en détail le comportement à la lixiviation d’un déchet dans des conditions spécifiées.
Karakterizacija odpadkov - Izluževalni preskus - Vpliv pH na izluževanje z uravnavanjem pH
General Information
- Status
- Published
- Publication Date
- 24-Mar-2015
- Technical Committee
- CEN/TC 444 - Environmental characterization
- Drafting Committee
- CEN/TC 444/WG 1 - Leaching tests
- Current Stage
- 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
- Start Date
- 15-Oct-2025
- Completion Date
- 15-Oct-2025
- Directive
- 99/31/EC - Landfill of waste
Relations
- Effective Date
- 21-Nov-2012
Overview
EN 14997:2015 - Characterization of waste: Leaching behaviour test - Influence of pH on leaching with continuous pH control specifies a laboratory method to determine how pH affects the leachability of inorganic constituents from waste materials. The method uses continuous automated adjustment of pH (acid/base addition) to approach chemical equilibrium and produces eluates that are subsequently characterized physically and chemically. EN 14997:2015 is a parameter‑specific test (per EN 12920) intended for basic characterization and is not sufficient alone to fully describe detailed leaching behaviour under all scenarios.
Key topics and technical requirements
- Scope: Focus on inorganic constituents and their pH‑dependent release from wastes, sludges, soils and construction materials.
- Continuous pH control: Automated addition of acid or base during the leaching procedure to maintain target pH values and approach equilibrium.
- Sample preparation and test portions: Laboratory sample reduction and preparation procedures to ensure representative test portions (references to EN 15002 and EN 14899).
- Leaching procedure and contact time: Defined contact times and controlled leachant preparation to generate eluates for analysis.
- Eluate analysis and storage: Physical and chemical characterization of eluates, with analytical requirements aligned to EN 16192 and good laboratory water practices (EN ISO 3696; EN ISO 5667‑3).
- Quality controls: Blank tests, performance characteristics (Annex E), and reporting requirements (Annex A and Clause 13).
- Supporting tools: Annexes cover titration procedures for acid/base neutralization capacity (Annex C), interpretation and uses (Annex B) and examples for data treatment.
Applications and practical value
Who uses EN 14997:2015:
- Environmental testing laboratories and consultants
- Waste producers and recyclers assessing reuse or disposal options
- Landfill operators and regulators performing basic characterization
- Researchers studying pH‑dependent mobility of metals and salts
Practical uses:
- Identify pH-sensitive release of metals and inorganic contaminants to inform risk assessments.
- Support basic characterization programs required for compliance testing and landfill decision making.
- Compare leaching behaviour across materials or track changes due to treatment/aging.
- Provide eluate data for modelling environmental release and leachate generation scenarios.
Related standards and cross‑references
- EN 12920 (test hierarchy and parameter testing)
- EN 14429 (pH influence test with initial acid/base addition - different control mode)
- EN 14346, EN 14899, EN 15002, EN 16192, EN ISO 3696, EN ISO 5667‑3
EN 14997:2015 is especially relevant for anyone needing reproducible, pH‑dependence leaching data using continuous pH control to better understand inorganic constituent mobility in waste management and environmental protection contexts.
Frequently Asked Questions
EN 14997:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Characterization of waste - Leaching behaviour test - Influence of pH on leaching with continuous pH control". This standard covers: This European Standard specifies a method for the determination of the influence of pH on the leachability of inorganic constituents from a waste material. Approaching equilibrium as defined in this European Standard is established by continuous adjustment of the pH by addition of acid or base to reach desired pH values. This test method produces eluates, which are subsequently characterized physically and chemically. This European Standard is a parameter specific test as specified in EN 12920. The application of this test method alone is not sufficient for the determination of the detailed leaching behaviour of a waste under specified conditions.
This European Standard specifies a method for the determination of the influence of pH on the leachability of inorganic constituents from a waste material. Approaching equilibrium as defined in this European Standard is established by continuous adjustment of the pH by addition of acid or base to reach desired pH values. This test method produces eluates, which are subsequently characterized physically and chemically. This European Standard is a parameter specific test as specified in EN 12920. The application of this test method alone is not sufficient for the determination of the detailed leaching behaviour of a waste under specified conditions.
EN 14997:2015 is classified under the following ICS (International Classification for Standards) categories: 13.030.01 - Wastes in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14997:2015 has the following relationships with other standards: It is inter standard links to CEN/TS 14997:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 14997:2015 is associated with the following European legislation: EU Directives/Regulations: 99/31/EC; Standardization Mandates: M/326. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Karakterizacija odpadkov - Izluževalni preskus - Vpliv pH na izluževanje z uravnavanjem pHCharakterisierung von Abfällen - Untersuchung des Auslaugungsverhaltens - Einfluss des pH-Wertes auf die Auslaugung bei kontinuierlicher pH-Wert-KontrolleCaractérisation des déchets - Essais de comportement à la lixiviation - Influence du pH sur la lixiviation avec contrôle continu du pHCharacterisation of waste - Leaching behaviour test - Influence of pH on leaching with continuous pH control13.030.01Odpadki na splošnoWastes in generalICS:Ta slovenski standard je istoveten z:EN 14997:2015SIST EN 14997:2015en,fr,de01-junij-2015SIST EN 14997:2015SLOVENSKI
STANDARDSIST-TS CEN/TS 14997:20071DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14997
March 2015 ICS 13.030.01 Supersedes CEN/TS 14997:2006English Version
Characterization of waste - Leaching behaviour test - Influence of pH on leaching with continuous pH control
Caractérisation des déchets - Essais de comportement à la lixiviation - Influence du pH sur la lixiviation avec contrôle continu du pH
Charakterisierung von Abfällen - Untersuchung des Elutionsverhaltens - Einfluss des pH-Wertes auf die Elution bei kontinuierlicher pH-Wert-Kontrolle This European Standard was approved by CEN on 26 December 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14997:2015 ESIST EN 14997:2015
Example of a data sheet . 19 Annex B (informative)
Operation and uses of the test — Influence of pH on the leaching behaviour . 20 B.1 Clarification of the two modes of operation of the test: influence of pH on the leaching behaviour . 20 B.2 Expression of results . 22 B.3 Scope and limits of the application field of the test . 22 B.3.1 Remarks on the use of pH dependence test results to assess the effects of ageing . 22 B.3.2 Examples of test result use and considerations on scope . 23 B.4 Example: Identification of the sensitivity of leaching to pH over the environmentally relevant pH range. 24 Annex C (informative)
Preliminary determination of the acid/base consumption . 25 C.1 General . 25 C.2 Titration procedure to estimate the ANC and the BNC . 25 SIST EN 14997:2015
Examples of acid and base neutralization capacities for waste, soil, sediment and construction materials . 29 D.1 Examples of acid and base neutralization capacities . 29 D.2 Use of acid and base neutralization capacity data . 31 Annex E (informative)
Repeatability and reproducibility data . 32 E.1 Materials used in the interlaboratory comparison study . 32 E.2 Interlaboratory comparison results . 32 Bibliography . 50
the status of the document has been changed from a CEN/TS into an European Standard; —
performance data has been added (see Annex E). 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, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 14997:2015
1) Council Directive 1999/31/EC of 26 April 1999 on the landfill of waste. 2) Council Decision 2003/33/EC of 19 December 2002. SIST EN 14997:2015
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記事タイトル：EN 14997:2015 - 廃棄物の特性化 - リーチング行動のテスト - 連続したpH制御によるリーチングへの影響 記事内容：この欧州規格は、廃棄物材料からの無機成分のリーチングにおけるpHの影響を決定するための方法を規定しています。この欧州規格で定義される均衡には、酸または塩基の添加によるpHの連続的な調整によって達成されます。このテスト方法は、その後物理的および化学的に特性化されたエリューエイトを生成します。 この欧州規格は、EN 12920で指定されたパラメーター固有のテストです。このテスト方法のみでは、特定の条件下での廃棄物の詳細なリーチングの挙動を決定するには十分ではありません。
기사 제목: EN 14997:2015 - 폐기물 특성화 - 침출 행동 시험 - 연속 pH 조절이 침출에 미치는 영향 기사 내용: 이 유럽 표준은 폐기물 물질에서 무기 성분의 침출성에 pH의 영향을 결정하기 위한 방법을 규정합니다. 이 유럽 표준에서 정의된 균형에 접근하기 위해 산 또는 염기를 첨가하여 원하는 pH 값을 달성하도록 연속적으로 pH를 조절합니다. 이 시험 방법은 이후에 물리적으로와 화학적으로 특성화된 용액을 생성합니다. 이 유럽 표준은 EN 12920에서 지정된 매개 변수 특정 시험입니다. 이 시험 방법의 적용만으로는 특정 조건 하에서의 폐기물의 상세한 침출 행동을 결정하기에는 부족합니다.
記事のタイトル：EN 14997:2015 - 廃棄物の特性化 - 浸出挙動試験 - 持続的なpH制御によるpHの影響 記事の内容：この欧州規格は、廃棄物材料からの無機成分の浸出性に対するpHの影響を決定するための方法を指定しています。この欧州規格で定義される均衡へのアプローチは、酸または塩基の添加による持続的なpH調整によって望ましいpH値に到達することによって確立されます。この試験方法では、その後、物理的および化学的に特性化された浸出液が生成されます。 この欧州規格は、EN 12920で指定されるパラメータ特定の試験です。この試験方法だけでは、指定された条件下での廃棄物の詳細な浸出挙動を確定するには十分ではありません。
기사 제목: EN 14997:2015 - 폐기물의 특성화 - 침출행동 시험 - 연속 pH 제어에 따른 pH의 영향 기사 내용: 이 유럽 표준은 폐기물 물질에서 무기 성분의 침출성에 pH의 영향을 결정하기 위한 방법을 규정합니다. 이 유럽 표준에서 정의한 평형 접근은 원하는 pH 값을 달성하기 위해 산 또는 염기를 첨가하여 연속 조정된 pH로 수행됩니다. 이 시험 방법은 이후에 물리적으로와 화학적으로 특성화된 추출물을 생성합니다. 이 유럽 표준은 EN 12920에서 지정한 매개변수 특정 시험입니다. 이 시험 방법만으로는 특정 조건에서의 폐기물의 상세한 침출 행동을 결정하는 데 충분하지 않습니다.
The article discusses the EN 14997:2015 standard, which focuses on determining how pH affects the leachability of inorganic constituents from waste materials. The standard involves continuously adjusting the pH levels through the addition of acid or base to achieve desired pH values. This method produces eluates that are then analyzed both physically and chemically. However, it is important to note that this test alone is not enough to fully understand the leaching behavior of a waste material under specific conditions.
The article discusses EN 14997:2015, which is a European Standard that focuses on characterizing waste and its leaching behavior. The standard outlines a test method that determines how pH influences the leachability of inorganic constituents from a waste material. The test involves continuously adjusting the pH by adding acid or base in order to reach desired pH values and then characterizing the resulting eluates physically and chemically. It is important to note that this test method alone is not enough to fully understand the leaching behavior of a waste under specific conditions and additional tests may be required.
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