EN 17839:2023

Glass in building - Glazing and airborne sound insulation - Validation procedure for calculation tools

This document specifies a procedure to validate a calculation tool based on simulation, analytical calculation and/or interpolation of airborne sound insulation characteristics of glass products.

Glas im Bauwesen - Glas und Luftschalldämmung - Validierungsverfahren für Berechnungsprogramme

Dieses Dokument legt ein Verfahren zur Validierung eines Berechnungstools auf Grundlage von Simulation, analytischer Berechnung und/oder Interpolation von Merkmalen der Luftschalldämmung von Glaserzeugnissen fest.

Verre dans la construction - Vitrages et isolation acoustique - Procédure de validation des outils de calcul

Le présent document spécifie une procédure permettant de valider un outil de calcul basé sur une simulation, un calcul analytique et/ou une interpolation des caractéristiques d’isolation aux bruits aériens des produits verriers.

Steklo v gradbeništvu - Zasteklitev in zvočna izolacija - Postopek potrjevanja računskih orodij

Ta dokument podaja postopek potrjevanja računskega orodja na podlagi simulacije, analitičnega računa in/ali interpolacije ocene zvočne izolacije za steklene proizvode.

General Information

• Status: Published
• Publication Date: 07-Nov-2023
• ICS: 81.040.20 - Glass in building
• ICS: 91.120.20 - Acoustics in building. Sound insulation
• Technical Committee: CEN/TC 129 - Glass in building
• Drafting Committee: CEN/TC 129/WG 10 - Sound insulating glazed assemblies
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 08-Nov-2023
• Due Date: 16-Feb-2024
• Completion Date: 08-Nov-2023
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/135 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on flat glass, profiled glass and glass block products
• Ref Project: SIST EN 17839:2024 - Glass in building - Glazing and airborne sound insulation - Validation procedure for calculation tools

Overview

EN 17839:2023 - "Glass in building - Glazing and airborne sound insulation - Validation procedure for calculation tools" (CEN) specifies a practical, repeatable procedure to validate software tools that predict airborne sound insulation of glazing. The standard defines how to compare calculated Sound Reduction Index (SRI) outputs with reference and measured data to confirm a tool’s reliability for use in product development, compliance and specification.

Key topics and technical requirements

• Scope and objective: Validation of calculation tools based on simulation, analytical models and/or interpolation for glazing airborne sound insulation.
• Frequency range and resolution: Tools must provide SRI in one‑third octave bands from 100 Hz to 3 150 Hz and calculate single‑number ratings Rw, Rw + C and Rw + Ctr according to EN ISO 717‑1.
• Validation procedure: A three‑step process:
  1. Compare calculated results with reference values (Annex A / Table A.1, derived from EN 12758:2019).
  2. Compare calculated results with measurements for randomly selected configurations.
  3. Verify the declared limits (glass thicknesses, interlayer and cavity ranges) against measurements.
• Categories covered: A–G for typical glazing assemblies (single monolithic, laminated, double and triple configurations). Laminated glass validation is limited to standard PVB interlayers.
• Accuracy & pass/fail rules: All comparisons at 0.1 dB resolution. Octave band deviation limits (e.g., ±2–3 dB at specified bands) and single‑number quantity rules are defined; exceeding thresholds may mark a category “not validated.”
• Reporting and traceability: Validation report and calculated result output must include SRI band data, single‑number ratings, glazing composition and category, software name/version, validation report number, timestamp, and a clear note that results are calculated (not measured).

Applications and who uses it

• Software developers of acoustic prediction tools - for third‑party validation and market acceptance.
• Notified bodies / validators / test laboratories - to perform formal validation according to CEN rules.
• Glass manufacturers, façade and acoustic consultants, specifiers and architects - to justify use of prediction tools in product data, design and compliance documentation.
• Regulatory and certification processes - supporting CE marking / declarations where acoustic performance claims are based on calculation.

Related standards

• EN 12758:2019 (reference data and product descriptions)
• EN ISO 10140‑1 and EN ISO 10140‑2 (laboratory measurement of airborne sound insulation)
• EN ISO 717‑1 (single‑number rating of sound insulation)

EN 17839:2023 provides a standardized, transparent route to demonstrate that glazing acoustic calculation tools produce conservative and reliable outcomes for practical design and compliance workflows.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2024
Steklo v gradbeništvu - Zasteklitev in zvočna izolacija - Postopek potrjevanja
računskih orodij
Glass in building - Glazing and airborne sound insulation - Validation procedure for
calculation tools
Glas in Bauwesen - Glas und Luftschalldämmung - Validierungsverfahren für
Berechnungsprogramme
Verre dans la construction - Vitrages et isolation acoustique - Procédure de validation
des outils de calcul
Ta slovenski standard je istoveten z: EN 17839:2023
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17839
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2023
EUROPÄISCHE NORM
ICS 81.040.20; 91.120.20
English Version
Glass in building - Glazing and airborne sound insulation -
Validation procedure for calculation tools
Verre dans la construction - Vitrages et isolation Glas im Bauwesen - Glas und Luftschalldämmung -
acoustique - Procédure de validation des outils de Validierungsverfahren für Berechnungsprogramme
calcul
This European Standard was approved by CEN on 14 August 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17839:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Software validation procedure . 6
4.1 General outline. 6
4.2 Coverage of the validation . 6
4.3 Requirements for the calculation tool . 7
4.4 Step 1: validation using the reference values of Table A.1. 7
4.4.1 Reference data. 7
4.4.2 Comparison procedure . 7
4.4.3 Validation criteria . 8
4.5 Step 2: validation using values of random glass configurations . 9
4.5.1 Reference data. 9
4.5.2 Validation criteria . 9
4.6 Step 3: validation of the limits of the calculation tool declared by applicant . 9
4.6.1 General . 9
4.6.2 Validation of the calculation tool outside of the ranges . 10
4.6.3 Validation criteria . 10
5 Revalidation . 10
6 Validation report content . 10
Annex A (normative) Reference data to be used for the validation process . 12
A.1 Reference glazing units . 12
A.1.1 General . 12
A.1.2 Sound transmission loss for glazing references . 12
Annex B (informative) Example of calculation results report . 15
Annex C (informative) Example of validation in Step 1 . 16

European foreword
This document (EN 17839:2023) has been prepared by Technical Committee CEN/TC 129 “Glass in
building”, the secretariat of which is held by NBN.
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 May 2024, and conflicting national standards shall be
withdrawn at the latest by May 2024.
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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
Introduction
The standards EN ISO 10140-1 and EN ISO 10140-2 specify test requirements for building elements and
products, including glazing units. EN 12758:2019 outlines a test procedure for the measurement in
laboratory of sound insulation for a range of glass configurations.
Considering the number of possible glazing configurations, it is impractical to measure the acoustic
characteristics for all of them.
The last few years have seen the development of acoustic calculation tools based on simulation and/or
interpolation. The aim of this document is to provide a methodology and reference values for the
assessment of such calculation tools.
As there is neither a reference calculation tool nor a standardized calculation method, the goal of this
document is to compare calculated results (irrespective of the method) with measured results, to ensure
that they do not exceed measured results.
NOTE Calculated results lower than measurement results do not lead to failure of the validation
The validation is undertaken first by a comparison with reference values selected from EN 12758:2019.
These values have been calculated on the basis of data collected from several European laboratories. The
assessment is completed by a comparison of the calculated values for other glass compositions with
measurements already performed by the validator according to EN ISO 10140-1 or another possible
validator.
1 Scope
This document specifies a procedure to validate a calculation tool based on simulation, analytical
calculation and/or interpolation of airborne sound insulation characteristics of glass products.
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 12758:2019, Glass in building — Glazing and airborne sound insulation — Product descriptions,
determination of properties and extension rules
EN ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1:
Airborne sound insulation (ISO 717-1)
EN ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:
Application rules for specific products (ISO 10140-1)
EN ISO 10140-2:2021, Acoustics — Laboratory measurement of sound insulation of building elements —
Part 2: Measurement of airborne sound insulation (ISO 10140-2:2021)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12758 and the following 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: available at https://www.iso.org/obp
3.1
calculation tool
software that provides Sound Reduction Index (SRI) of glazing configurations, aiming at giving results as
close as possible to those that would have been obtained by measurement according to EN ISO 10140-1
and EN ISO 10140-2
3.2
applicant
party that provides the calculation tool for validation, owns the rights of the calculation tool, and was
involved in its development process
3.3
validator
party that validates the calculation tool in accordance with this document
Note 1 to entry: Within the framework of the EU Regulation 305/2011, the validator is a notified body.
3.4
user
person who uses the calculation tool
4 Software validation procedure
4.1 General outline
The applicant shall provide the validator with access to the calculation tool.
The validation procedure is undertaken in three consecutive steps, for each category asspecified in 4.2:
— Step 1: Results obtained with the calculation tool to be validated shall be compared by the validator
to a range of maximal values for specified reference glazing products as specified in Annex A
(see 4.4).
— Step 2: If the result of this first evaluation is positive, a second evaluation is undertaken by comparing
calculated values for configurations selected by the validator with values obtained by measurement
(see 4.5).
— Step 3: When the result of the second evaluation is positive, the given limits of the calculation tool for
thicknesses of monolithic glass, laminated glass, interlayer and cavity widths are validated by
comparison to measurement results (see 4.6).
All comparisons shall be undertaken with an accuracy of 0,1 dB.
4.2 Coverage of the validation
The evaluation of a calculation tool is done for one or several categories hereunder:
— Category A: single monolithic glass;
— Category B: single laminated glass;
— Category C: double glazing units with monolithic glass components only;
— Category D: double glazing units with one monolithic and one laminated glass components;
— Category E: triple glazing units with only monolithic glass components;
— Category F: triple glazing units with two monolithic and one laminated glass components;
— Category G: triple glazing units with one monolithic (mid-pane) and two laminated glass components.
NOTE 1 Laminated glass refers only to standard PVB interlayer (non-acoustic).
The validator shall perform an evaluation for each category for which the calculation tool is able to
perform a calculation. The validator shall state for each evaluated category if the calculation tool passed
or not.
The applicant defines the limits of glass thicknesses, cavity widths and interlayer thicknesses by
restricting user inputs, e.g. only glass thicknesses from 3 mm to 15 mm can be chosen by the user.
The applicant informs the validator about categories which shall not be validated.
The applicant shall clearly indicate for which categories of products the calculation tool has been
validated, e.g. by a disclaimer accompanying the validation tool.
At the date of publication of this document, due to insufficient data concerning laminated glass with
interlayers other than standard (non-acoustic) PVB interlayers, only this type is considered for the
validation method.
NOTE 2 The validation does not cover frequencies below 100 Hz and above 3 150 Hz.
4.3 Requirements for the calculation tool
The calculation tool shall calculate sound reduction index in one-third octave bands in the range from
100 Hz to 3 150 Hz. Furthermore, the calculation tool shall calculate single-number quantities R , R +C
w w
and R +C according to EN ISO 717-1.
w tr
The version of the calculation tool shall be clearly and unambiguously identified. As an example, the
calculation tool may use a unique hash code based on the complete software code source.
The presentation and report of the calculation results shall contain:
— sound reduction index, in dB, in one-third octave band in the range from 100 Hz to 3150 Hz and R ,
w
R +C and R +C according to EN ISO 717-1;
w w tr
— the composition of the calculated glazing, its corresponding category from 4.2, with a reference to
this document;
— a clear note that the results are not derived from measurement;
— name and version number of the calculation tool;
— the number of the software validation report
— time and date of calculation.
All results shall be given with an accuracy of 0,1 dB.
An example for a calculation results report is given in Annex B. This example is not applicable to glazing
configurations other than from any of the categories that have been validated.
4.4 Step 1: validation using the reference values of Table A.1
4.4.1 Reference data
The reference values are given in Table A.1 of Annex A for each reference glazing configuration. All
configurations of Table A.1 listed in the categories for which the applicant requests a validation shall be
calculated by the validator.
4.4.2 Comparison procedure
The validator shall perform the calculations on glazings as specified in 4.2, using the applicant's
calculation tool.
The validator compares the results obtained with the applicant tool with the data in one-third octave
bands and single-number quantity ratings given in Table A.1 and assesses if the criteria specified in 4.4.3
are met.
4.4.3 Validation criteria
The following criteria shall
...