oSIST prEN 18233:2025

Determination of characteristic load resistance and characteristic plate stiffness of plate anchors in the ETICS kit

This document covers the determination of the characteristic load resistance Fp and the characteristic plate stiffness kp of plate anchors.

Wärmedämmstoffe für das Bauwesen - Bestimmung der charakteristischen Tragfähigkeit und der charakteristischen Steifigkeit von Tellerdübeln

Dieses Dokument behandelt die Bestimmung des charakteristischen Lastwiderstands Fp und der charakteristischen Steifigkeit kp von Tellerdübeln.

Détermination de la résistance caractéristique à la charge et de la raideur caractéristique des chevilles à rosace dans le kit ETICS

Le présent document couvre la détermination de la résistance caractéristique à la charge Fp et de la raideur caractéristique de la rosace kp des chevilles à rosace.

Ugotavljanje karakteristične nosilnosti in karakteristične togosti ploščatih sidrnih plošč v kompletu ETICS

General Information

• Status: Not Published
• Public Enquiry End Date: 16-Nov-2025
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: TOP - Thermal insulation
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 10-Sep-2025
• Due Date: 28-Jan-2026
• Completion Date: 09-Jan-2026
• Ref Project: prEN 18233 - Determination of characteristic load resistance and characteristic plate stiffness of plate anchors in the ETICS kit

Overview

oSIST prEN 18233:2025 is a draft European standard developed by the Slovenian Institute for Standardization (SIST). This document specifies the methods for determining two critical mechanical properties of plate anchors used in External Thermal Insulation Composite Systems (ETICS): the characteristic load resistance (Fp) and the characteristic plate stiffness (kp). These properties are fundamental for assessing the performance, safety, and durability of ETICS kits in construction applications.

Compliance with this standard ensures that plate anchors meet reliability and quality benchmarks necessary for effective thermal insulation and cladding systems in buildings.

Key Topics

• Scope of Testing: The standard outlines procedures to determine:
  • Characteristic load resistance (Fp): The maximum mechanical load the anchor plate can resist before failure.
  • Characteristic plate stiffness (kp): Stiffness value representing the anchor plate's resistance to deformation under tensile load.
• Test Methods:
  • Preparation and conditioning of plate anchors before testing
  • Use of tensile test equipment such as displacement transducers and tensile testing machines
  • Measurement setup for different anchor types
• Data Analysis:
  • Calculation of statistical values like mean, standard deviation, and quantiles to determine Fp and kp
  • Use of load-displacement diagrams for graphical or regression analysis of stiffness
• Reporting Requirements:
  • Detailed documentation of test conditions, product identification, testing procedure, and measurement results

Applications

This standard is essential for manufacturers, testing laboratories, and construction professionals involved with ETICS kits. Specific applications include:

• Product Development and Quality Control: Ensuring that plate anchors meet specified strength and stiffness requirements before market release.
• System Certification and Regulatory Compliance: Demonstrating conformity with European and national regulations for building thermal insulation systems.
• Installation Reliability: Enhancing the structural integrity and service life of ETICS by using anchors tested and approved according to standardized methods.
• Research and Testing: Providing a consistent methodology for comparative studies and performance assessments of plate anchor designs and materials.

Industries most impacted by this standard include construction, building materials manufacturing, and laboratory testing services focused on thermal insulation systems.

Related Standards

When working with oSIST prEN 18233:2025, the following related standards and references are relevant for comprehensive compliance and understanding:

• EN ISO 9229:2007 - Thermal Insulation Vocabulary: Provides terminology used throughout the testing and evaluation procedures.
• ISO 12491:2019 - Statistical Methods for Quality Control: Outlines the statistical methodology for calculating mechanical properties in building materials.
• EN 17237 - Thermal Insulation Products for Buildings: Specifies requirements for ETICS with renders, to which plate anchors are a critical component.

Adhering to these referenced standards ensures alignment with the latest technical vocabulary and testing practices in the insulation and construction sector.

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By following oSIST prEN 18233:2025, stakeholders can confidently establish and verify the mechanical performance of plate anchors in ETICS kits, contributing to safer, more durable, and energy-efficient buildings. This standard supports harmonization across the European construction industry, promoting best practices in the use of thermal insulation materials and anchor systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2025
Ugotavljanje karakteristične nosilnosti in karakteristične togosti ploščatih sidrnih
plošč v kompletu ETICS
Determination of characteristic load resistance and characteristic plate stiffness of plate
anchors in the ETICS kit
Wärmedämmstoffe für das Bauwesen - Bestimmung der charakteristischen Tragfähigkeit
und der charakteristischen Steifigkeit von Tellerdübeln
Détermination de la résistance caractéristique à la charge et de la raideur caractéristique
des chevilles à rosace dans le kit ETICS
Ta slovenski standard je istoveten z: prEN 18233
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.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2025
ICS 91.100.60
English Version
Determination of characteristic load resistance and
characteristic plate stiffness of plate anchors in the ETICS
kit
Détermination de la résistance caractéristique à la Wärmedämmstoffe für das Bauwesen - Bestimmung
charge et de la raideur caractéristique des chevilles à der charakteristischen Tragfähigkeit und der
rosace dans le kit ETICS charakteristischen Steifigkeit von Tellerdübeln
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 88.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 18233:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
3.1 Terms and definition . 4
3.2 Symbols and units . 4
4 Principles . 5
5 Test equipment/apparatus . 5
6 Test specimen . 5
6.1 Preparing of the test specimen . 5
6.2 Numbers of the test specimen . 6
6.3 Conditioning of plate anchors . 6
7 Test conditions . 7
8 Procedure . 7
9 Calculation and expression of results . 7
9.1 Characteristic load resistance . 7
9.2 Characteristic plate stiffness . 7
10 Test report . 9

European foreword
This document (prEN 18233:2025) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
1 Scope
This document covers the determination of the characteristic load resistance F and the characteristic
p
plate stiffness k of plate anchors.
p
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.
EN ISO 9229:2007, Thermal insulation — Vocabulary (ISO 9229:2007)
ISO 12491:2019, Statistical methods for quality control of building materials and components
(ISO 12491:2019)
EN 17237, Thermal insulation products for buildings — External thermal insulation composite systems
with renders (ETICS) — Specification
3 Terms and definitions
3.1 Terms and definition
For the purposes of this document, the terms and definitions given in EN ISO 9229:2007 and EN 17237
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: av
...