EN ISO 12624:2022
(Main)Thermal insulating products for building equipment and industrial installations - Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH (ISO 12624:2022)
Thermal insulating products for building equipment and industrial installations - Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH (ISO 12624:2022)
This document specifies the equipment and procedures for determining trace quantities of the water-soluble chloride, fluoride, silicate and sodium ions in an aqueous extract of the product. It also describes a procedure for the determination of the pH of the aqueous extract. It is applicable to thermal insulating products.
NOTE The determination of these parameters can be relevant for thermal insulating products intended for application to stainless austenitic steel surfaces. The presence of chloride, fluoride, silicate and sodium ions under certain conditions can influence the risk of stress corrosion cracking. See Annex B for further information on general use of this document.
Wärmedämmstoffe für die Haustechnik und für betriebstechnische Anlagen - Bestimmung des Gehalts von wasserlöslichen Chlorid-, Fluorid-, Silikat- und Natrium-Ionen und des pH-Wertes (ISO 12624:2022)
Dieses Dokument legt die Prüfeinrichtungen und Verfahren zur Bestimmung des Gehalts von wasserlöslichen Chlorid-, Fluorid-, Silikat- und Natrium-Ionen eines wässrigen Extrakts des Produkts fest. Es beschreibt außerdem ein Verfahren zur Bestimmung des pH-Werts des wässrigen Extrakts. Es gilt für Wärmedämmstoffe.
ANMERKUNG Die Bestimmung dieser Parameter kann für Wärmedämmstoffe relevant sein, die zur Anwendung auf Oberflächen aus austenitischem nichtrostenden Stahl vorgesehen sind. Die Anwesenheit von Chlorid-, Fluorid-, Silikat- und Natrium-Ionen kann unter bestimmten Bedingungen das Risiko der Spannungsrisskorrosion beeinflussen. Siehe Anhang B für weitere Informationen zur allgemeinen Anwendung dieses Dokuments.
Produits isolants thermiques pour les équipements de bâtiments et les installations industrielles - Détermination des faibles quantités d'ions chlorure, fluorure, silicate et sodium solubles dans l'eau et mesure du pH (ISO 12624:2022)
Le présent document spécifie les équipements nécessaires et les modes opératoires à suivre pour déterminer les faibles quantités d’ions chlorure, fluorure, silicate et sodium solubles dans l’eau, ainsi que le pH d’un extrait aqueux du produit. Il s’applique aux produits isolants thermiques.
NOTE La détermination de ces paramètres peut s’appliquer aux produits isolants thermiques appliqués sur des surfaces d’acier inoxydable austénitique. La présence d’ions chlorure, fluorure, silicate et sodium sous certaines conditions peut avoir une influence sur les risques de fissuration par corrosion sous contrainte. Voir Annexe B pour plus d’informations sur l’utilisation générale du présent document.
Toplotnoizolacijski proizvodi za opremo stavb in industrijske inštalacije - Ugotavljanje sledi vodotopnih kloridnih, fluoridnih, silikatnih in natrijevih ionov ter vrednosti pH (ISO 12624:2022)
Ta standard določa opremo in postopke za ugotavljanje sledi vodotopnih kloridnih, fluoridnih, silikatnih in natrijevih ionov v vodnem ekstraktu proizvoda. Opisuje tudi postopek za ugotavljanje vrednosti pH vodnega ekstrakta. Standard se uporablja za toplotnoizolacijske proizvode.
OPOMBA: Ugotavljanje teh parametrov je lahko relevantno za toplotnoizolacijske proizvode, namenjene za uporabo pri površinah iz avstenitnega nerjavnega jekla. Prisotnost kloridnih, fluoridnih, silikatnih in natrijevih ionov pod določenimi pogoji lahko vpliva na tveganje pokanja zaradi napetostne korozije. Za dodatne informacije glej informativni dodatek B.
General Information
Relations
Overview
EN ISO 12624:2022 - Thermal insulating products for building equipment and industrial installations - Determination of trace quantities of water‑soluble chloride, fluoride, silicate, sodium ions and pH (ISO 12624:2022) - specifies equipment and procedures to quantify trace amounts of water‑soluble chloride (Cl−), fluoride (F−), silicate (SiO3 2− or related), sodium (Na+) and the pH of an aqueous extract of thermal insulating products. The standard applies to insulation used in building services and industrial installations and is particularly relevant where insulating materials contact stainless austenitic steel, since these ions can affect the risk of stress corrosion cracking. It supersedes EN 13468:2001 and updates prior editions of ISO 12624.
Key topics
- Scope and purpose: procedures for preparing aqueous extracts from insulating test specimens and for measuring trace soluble ions and pH.
- Apparatus and materials: specification of glassware and analytical equipment appropriate for trace analysis and low‑background leaching (including guidance for borosilicate equipment in Annex C).
- Sample preparation: conditioning, specimen dimensions, number of specimens and leaching/ extraction conditions to obtain representative aqueous extracts.
- Analytical methods: options for determination of ions and pH, including:
- Ion chromatography and silver nitrate titration for chloride;
- spectrophotometric methods for fluoride (e.g., zirconium‑SPADNS, Annex A);
- spectrometric or colorimetric silicate determination and sodium measurement (see Clause 7 and Clause 8 in the standard);
- pH measurement using a calibrated pH meter.
- Calculation, expression and reporting: how to express results, accuracy considerations and required test‑report contents.
- Informative guidance: Annex B provides context on use and interpretation relevant to corrosion risk.
Applications and users
Who benefits from EN ISO 12624:2022:
- Manufacturers of thermal insulating products - to characterize product chemistry and demonstrate suitability for specific installations.
- Independent testing laboratories - to perform standardized leachate testing and provide comparable data.
- Specifiers and installers of building services and industrial insulation - to assess material compatibility with metallic substrates (especially stainless austenitic steel).
- Corrosion engineers and asset owners - to evaluate risk of chloride/fluoride‑induced stress corrosion cracking and to support material selection.
- Regulators and conformity bodies - for harmonized test methods and reporting.
Keywords: EN ISO 12624:2022, thermal insulating products, trace ions, chloride, fluoride, silicate, sodium, pH, stress corrosion cracking, aqueous extract, ion chromatography, zirconium SPADNS.
Related standards
- ISO 10136‑1 and ISO 10136‑2 (analysis of extract solutions - silicon dioxide and sodium/potassium by spectrometric methods)
- References and coordination through ISO/TC 163 and CEN/TC 88 (thermal insulation standards).
Frequently Asked Questions
EN ISO 12624:2022 is a standard published by the European Committee for Standardization (CEN). Its full title is "Thermal insulating products for building equipment and industrial installations - Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH (ISO 12624:2022)". This standard covers: This document specifies the equipment and procedures for determining trace quantities of the water-soluble chloride, fluoride, silicate and sodium ions in an aqueous extract of the product. It also describes a procedure for the determination of the pH of the aqueous extract. It is applicable to thermal insulating products. NOTE The determination of these parameters can be relevant for thermal insulating products intended for application to stainless austenitic steel surfaces. The presence of chloride, fluoride, silicate and sodium ions under certain conditions can influence the risk of stress corrosion cracking. See Annex B for further information on general use of this document.
This document specifies the equipment and procedures for determining trace quantities of the water-soluble chloride, fluoride, silicate and sodium ions in an aqueous extract of the product. It also describes a procedure for the determination of the pH of the aqueous extract. It is applicable to thermal insulating products. NOTE The determination of these parameters can be relevant for thermal insulating products intended for application to stainless austenitic steel surfaces. The presence of chloride, fluoride, silicate and sodium ions under certain conditions can influence the risk of stress corrosion cracking. See Annex B for further information on general use of this document.
EN ISO 12624:2022 is classified under the following ICS (International Classification for Standards) categories: 91.100.60 - Thermal and sound insulating materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 12624:2022 has the following relationships with other standards: It is inter standard links to EN 13468:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN ISO 12624:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2022
Nadomešča:
SIST EN 13468:2002
Toplotnoizolacijski proizvodi za opremo stavb in industrijske inštalacije -
Ugotavljanje sledi vodotopnih kloridnih, fluoridnih, silikatnih in natrijevih ionov ter
vrednosti pH (ISO 12624:2022)
Thermal insulating products for building equipment and industrial installations -
Determination of trace quantities of water soluble chloride, fluoride, silicate, sodium ions
and pH (ISO 12624:2022)
Wärmedämmstoffe für die Haustechnik und für betriebstechnische Anlagen -
Bestimmung des Gehalts von wasserlöslichen Chlorid-, Fluorid-, Silikat- und Natrium-
Ionen und des pH-Wertes (ISO 12624:2022)
Produits isolants thermiques pour l'équipement du bâtiment et les installations
industrielles - Détermination des faibles quantités d'ions chlorure, fluorure, silicate et
sodium solubles dans l'eau et mesure du pH (ISO 12624:2022)
Ta slovenski standard je istoveten z: EN ISO 12624:2022
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 12624
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 91.100.60 Supersedes EN 13468:2001
English Version
Thermal insulating products for building equipment and
industrial installations - Determination of trace quantities
of water-soluble chloride, fluoride, silicate, sodium ions
and pH (ISO 12624:2022)
Produits isolants thermiques pour les équipements de Wärmedämmstoffe für die Haustechnik und für
bâtiments et les installations industrielles - betriebstechnische Anlagen - Bestimmung des Gehalts
Détermination des faibles quantités d'ions chlorure, von wasserlöslichen Chlorid-, Fluorid-, Silikat- und
fluorure, silicate et sodium solubles dans l'eau et Natrium-Ionen und des pH-Wertes (ISO 12624:2022)
mesure du pH (ISO 12624:2022)
This European Standard was approved by CEN on 7 August 2022.
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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12624:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 12624:2022) has been prepared by Technical Committee ISO/TC 163 "Thermal
performance and energy use in the built environment" in collaboration with Technical Committee
CEN/TC 88 “Thermal insulating materials and products” the secretariat of which is held by DIN.
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 March 2023, and conflicting national standards shall
be withdrawn at the latest by September 2025.
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 13468:2001.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 12624:2022 has been approved by CEN as EN ISO 12624:2022 without any modification.
INTERNATIONAL ISO
STANDARD 12624
Second edition
2022-08
Thermal insulating products for
building equipment and industrial
installations — Determination of trace
quantities of water-soluble chloride,
fluoride, silicate, sodium ions and pH
Produits isolants thermiques pour les équipements de bâtiments et
les installations industrielles — Détermination des faibles quantités
d'ions chlorure, fluorure, silicate et sodium solubles dans l'eau et
mesure du pH
Reference number
ISO 12624:2022(E)
ISO 12624:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 12624:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
5.1 General information. 1
5.2 Preparation of aqueous extracts . 2
5.3 Analyses . . 2
5.4 Materials . 2
6 Test specimens . 3
6.1 General . 3
6.2 Dimensions of test specimens . 3
6.3 Number of test specimens . 3
6.4 Conditioning of test specimens . 3
7 Procedure .3
7.1 Test conditions . 3
7.2 Test procedure . 3
7.2.1 Preparation of the leaching solution . 3
7.2.2 Chloride determination . 4
7.2.3 Fluoride determination . 5
7.2.4 Silicate determination . 5
7.2.5 Sodium determination . 6
7.2.6 pH determination by use of pH meter . 6
8 Calculation and expression of results . 6
8.1 General . 6
−
8.2 Chloride (Cl ) . 6
8.2.1 Ion chromatography . 6
8.2.2 Silver nitrate titration. 7
−
8.3 Fluoride (F ) . 7
− −
8.4 Silicate (SiO ) . 7
+
8.5 Sodium (Na ) . 8
8.6 pH . 8
9 Accuracy of measurement.8
10 Test report . 9
Annex A (normative) Spectrophotometric determination of fluoride with zirconium
SPADNS .10
Annex B (informative) General information related to the use of this document .11
Annex C (informative) Example of borosilicate glass equipment to prepare leaching
solutions for thermal insulating products that float .12
iii
ISO 12624:2022(E)
Foreword
ISO (the 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
committee 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
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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 any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/
iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use
in the built environment, Subcommittee SC 1, Test and measurement methods, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 88, Thermal insulating
materials and products, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 12624:2011), which has been technically
revised.
The main changes are as follows:
— EN 13468:2001 and ISO 12624:2011 have been merged into one document;
— Clause 3, Terms and definitions, has been added and the numbering of the following clauses has
been changed accordingly;
— editorial revisions.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 12624:2022(E)
Thermal insulating products for building equipment
and industrial installations — Determination of trace
quantities of water-soluble chloride, fluoride, silicate,
sodium ions and pH
1 Scope
This document specifies the equipment and procedures for determining trace quantities of the water-
soluble chloride, fluoride, silicate and sodium ions in an aqueous extract of the product. It also describes
a procedure for the determination of the pH of the aqueous extract. It is applicable to thermal insulating
products.
NOTE The determination of these parameters can be relevant for thermal insulating products intended
for application to stainless austenitic steel surfaces. The presence of chloride, fluoride, silicate and sodium ions
under certain conditions can influence the risk of stress corrosion cracking. See Annex B for further information
on general use of this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 10136-1, Glass and glassware — Analysis of extract solutions — Part 1: Determination of silicon dioxide
by molecular absorption spectrometry
ISO 10136-2, Glass and glassware — Analysis of extract solutions — Part 2: Determination of sodium oxide
and potassium oxide by flame spectrometric methods
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Principle
Test specimens of the insulating product are boiled or heated in deionized water to leach out soluble
ions. Tests to determine water-soluble chloride, fluoride, silicate and sodium ions are performed on
aliquots of the filtered aqueous extract. A pH value is determined on one of the aliquots.
5 Apparatus
5.1 General information
All equipment and working instruments used for this purpose shall be free of soluble chloride, fluoride,
silicate, sodium ions and grease. Chloride-free solvents shall be used to clean equipment and working
ISO 12624:2022(E)
instruments (avoid chlorinated solvents). During the performance of the analytic procedure, extraneous
sources of these ions shall be reduced or eliminated.
5.2 Preparation of aqueous extracts
5.2.1 1 000 ml borosilicate glass flask.
5.2.2 Water condenser.
5.2.3 Heater, conforming to the requirements of 8.2.
5.2.4 Prewashed
...
EN ISO 12624:2022 is a document that outlines the equipment and procedures for determining trace amounts of water-soluble chloride, fluoride, silicate, sodium ions, and pH in thermal insulating products. This information is particularly important for products used on stainless austenitic steel surfaces, as the presence of these ions can affect the risk of stress corrosion cracking. Annex B provides additional details on the general use of this document.
記事タイトル：EN ISO 12624:2022 - 建築機器および産業設備用断熱材 - 水溶性クロライド、フッ化物、ケイ酸塩、ナトリウムイオンおよびpHの微量の定量（ISO 12624：2022） 記事内容：この文書は、製品の水溶性クロライド、フッ化物、ケイ酸塩、ナトリウムイオンの微量を定量するための設備と手順を規定しています。また、水溶性抽出物のpHを定量する手順も記載しています。これは、断熱材に適用されます。 注：これらのパラメータの決定は、ステンレスオーステナイト鋼表面に適用される断熱材にとって重要です。特定の条件下では、クロライド、フッ化物、ケイ酸塩、ナトリウムイオンの存在は応力腐食割れのリスクに影響を与える可能性があります。この文書の一般的な使用方法の詳細については、付録Bを参照してください。
기사 제목: EN ISO 12624:2022 - 건축 설비 및 산업 설비용 열 절연 제품- 수용성 염소, 불소, 규산 및 나트륨 이온, pH의 흔적 정량 결정 (ISO 12624:2022) 기사 내용: 이 문서는 제품의 수용성 염소, 불소, 규산 및 나트륨 이온의 흔적 정량을 위한 장비와 절차를 기술합니다. 또한 수용성 추출물의 pH를 결정하기 위한 절차도 설명합니다. 이는 열 절연 제품에 적용됩니다. 참고: 이러한 매개 변수의 결정은 스테인레스 오스테나이트 강판 표면에 적용되는 열 절연 제품에 관련이 있을 수 있습니다. 일부 조건에서 염화물, 불화물, 규산 및 나트륨 이온의 존재는 응력부식크랙의 위험을 영향을 줄 수 있습니다. 이 문서의 일반 사용에 대한 자세한 내용은 부록 B를 참조하십시오.
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