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
Publication Date
25-May-2026
Current Stage
4060 - Closure of enquiry - Enquiry
Start Date
20-Nov-2025
Due Date
01-Jul-2024
Completion Date
20-Nov-2025

Overview

prEN 18233 establishes a harmonized test procedure to determine the characteristic load resistance (Fp) and the characteristic plate stiffness (kp) of plate anchors used in ETICS kits. The standard defines specimen preparation, required test equipment, environmental conditioning, test execution and the statistical treatment of results to ensure repeatable values for design, product verification and quality control.

Keywords: plate anchors, ETICS, characteristic load resistance, plate stiffness, Fp, kp, test method, tensile testing, quality control

Key Topics

  • Scope and purpose: Determination of the characteristic load resistance Fp (kN) and characteristic plate stiffness kp (kN/mm) of plate anchors in ETICS.
  • Test principle: An anchor plate is pulled through a solid support ring with a defined tensile load while displacement is recorded to obtain a load–displacement curve.
  • Equipment: Solid support ring (30 mm diameter, 24 mm clear inner diameter), displacement transducer (0,01 mm accuracy), clamping jaws and a tensile testing machine (0,01 kN accuracy).
  • Specimens and conditioning: Five test specimens are required. Plate anchors made of polar plastics shall be conditioned to equilibrium moisture at (23 ± 2) °C and (50 ± 5) % RH until mass constancy.
  • Test conditions & procedure: Measurements are taken at (23 ± 2) °C, (50 ± 5) % RH after conditioning. Tensile load is increased until failure at a rate of (1 ± 0,2) kN/min and maximum load and displacements are recorded.
  • Result calculation:
    • Characteristic load resistance (Fp): Determined from the 5 %-quantile of maximum loads for a 90 % confidence level using the statistical procedure referenced in the standard.
    • Characteristic plate stiffness (kp): Expressed as the mean tangent stiffness of the tests. Tangent stiffness is determined from the slope at 1 mm displacement in the load–displacement diagram.

Applications

  • Supporting safe ETICS system design by providing verified anchor loading and stiffness parameters for structural checks and thermal insulation fixing designs.
  • Product performance verification and manufacturer quality control during development and production of plate anchors and ETICS kits.
  • Input data for technical specifications, product declarations and technical assessment when anchorage performance influences system durability and safety.
  • Reference method for testing laboratories to produce consistent, comparable results for certification and conformity tasks.

Related Standards

  • EN 17237 (ETICS specification) - referenced for ETICS product requirements.
  • EN ISO 9229 - terminology for thermal insulation.
  • ISO 12491 - statistical methods for quality control of building materials and components.

This standard provides a concise, reproducible test framework for manufacturers, testing laboratories and specifiers seeking reliable anchor performance data for ETICS applications. The test report requirements ensure traceability by listing specimen identification, environmental conditions, raw results and calculated characteristic values.

Draft
prEN 18233:2025
English language
9 pages
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Frequently Asked Questions

prEN 18233 is a draft published by the European Committee for Standardization (CEN). Its full title is "Determination of characteristic load resistance and characteristic plate stiffness of plate anchors in the ETICS kit". This standard covers: This document covers the determination of the characteristic load resistance Fp and the characteristic plate stiffness kp of plate anchors.

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

prEN 18233 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.

You can purchase prEN 18233 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-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
...

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