kSIST FprEN 18233:2026
(Main)Determination of characteristic load resistance and characteristic plate stiffness of plate anchors in the ETICS kit
General Information
- Abstract
This document covers the determination of the characteristic load resistance Fp and the characteristic plate stiffness kp of plate anchors.
- Status
- Not Published
- Public Enquiry End Date
- 16-Nov-2025
- Technical Committee
- TOP - Thermal insulation
- Current Stage
- 5020 - Formal vote (FV) (Adopted Project)
- Start Date
- 17-Aug-2026
- Due Date
- 05-Oct-2026
Overview
kSIST FprEN 18233:2026 sets out a standardized method for determining the characteristic load resistance (Fp) and characteristic plate stiffness (kp) of plate anchors used in External Thermal Insulation Composite Systems (ETICS) kits. Developed by SIST, this standard ensures consistent testing and reliable results for plate anchors, which play a critical role in the performance and durability of ETICS used in building thermal insulation.
Plate anchors are essential for the secure attachment of insulation panels to substrates in ETICS, which enhance a building's energy efficiency by reducing thermal bridging and supporting sound insulation. Assessing the mechanical performance-specifically, the load capacity and stiffness-of these anchors is key for system safety and long-term effectiveness.
Key Topics
Characteristic Load Resistance (Fp):
The document describes how to determine the characteristic load resistance of a plate anchor, representing its ability to withstand tensile forces before failure. Fp is established through a standardized tensile testing process, ensuring results are statistically reliable.Characteristic Plate Stiffness (kp):
kp refers to the average tangent stiffness of plate anchors, defining how much a plate anchor deforms under applied load. Adequate stiffness ensures the integrity of the ETICS kit and prevents excessive movement that could compromise insulation or finishing layers.Testing Procedure:
- Preparation and conditioning of plate anchors to standard temperature and humidity conditions (23 ± 2 °C, 50 ± 5% RH)
- Use of specialized test equipment including tensile testing machines, solid support rings, and displacement transducers, measured to high accuracy
- Application of tensile load at a controlled rate to test specimens, with load and displacement data carefully recorded
- Calculation of both Fp and kp using statistical analysis of multiple test specimens
Reporting Requirements:
Comprehensive test reports must include product and manufacturer identification, detailed test conditions and results, and any deviations from the specified method to ensure transparency and reproducibility.
Applications
This standard is essential for manufacturers and quality assurance laboratories involved in ETICS product development, certification, and regulatory compliance. Its primary applications include:
Product Qualification and Certification:
By applying kSIST FprEN 18233:2026, stakeholders can demonstrate that plate anchors meet minimum mechanical performance requirements before being integrated into ETICS kits for sale or installation.Quality Control in Manufacturing:
Manufacturers can use this standard for routine batch testing of plate anchors to ensure consistent performance and facilitate traceability in case of future audits or investigations.Support for Building Codes and Energy Regulations:
Reliable determination of characteristic load resistance and plate stiffness underpins structural safety and thermal efficiency, supporting compliance with national and European building codes concerning energy efficiency and façade safety.Research and Development:
Product designers and engineers use the data obtained under this standard to optimize anchor materials and geometries for improved performance and cost-effectiveness.
Related Standards
Employing kSIST FprEN 18233:2026 is most effective when combined with related standards that address ETICS systems and building insulation more broadly:
EN ISO 9229:2007 - Thermal insulation - Vocabulary
Standardized terminology for insulation materials and products.EN 17237 - Thermal insulation products for buildings - External thermal insulation composite systems with renders (ETICS) – Specification
Specification for ETICS products and components.ISO 12491:2019 - Statistical methods for quality control of building materials and components
Methods referenced for statistical evaluation within this standard.
Following these standards in combination enables a comprehensive and quality-driven approach to the design, manufacture, and installation of ETICS and their components, supporting energy efficiency and structural safety across the construction sector.
Get Certified
Connect with accredited certification bodies for this standard
DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
DIN CERTCO
DIN Group product certification.
Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
Sponsored listings
Frequently Asked Questions
kSIST FprEN 18233:2026 is a draft published by the Slovenian Institute for Standardization (SIST). 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.
kSIST FprEN 18233:2026 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.
kSIST FprEN 18233:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 18233:2025
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
oSIST prEN 18233:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 18233:2025
oSIST prEN 18233:2025
DRAFT
EUROPEAN STANDARD
prEN 18233
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.
oSIST prEN 18233:2025
prEN 18233:2025 (E)
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
oSIST prEN 18233:2025
prEN 18233:2025 (E)
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.
oSIST prEN 18233:2025
prEN 18233:2025 (E)
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
...