oSIST prEN 17020-3:2016

Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows – Part 3: Durability of self-closing of steel sliding doorsets

This European Standard covers the following types of steel based doorsets: horizontally sliding doorsets (single and double), telescopic doorsets (single and double) and single vertically sliding doorsets as covered by EN 15269 7.
This document prescribes the methodology for extending the application of test results obtained from durability self-closing test(s) conducted in accordance with EN 1634 1.
Subject to the completion of the appropriate self-closing test or tests, the extended application may cover all or some of the following non-exhaustive list:
-   integrity only (E), radiation (EW) or insulated (EI1 or EI2) classifications;
-   door leaf;
-   wall/ceiling fixed elements (frame/suspension system);
-   glazing for door leaf;
-   items of building hardware;
-   decorative finishes;
-   intumescent, smoke, draught or acoustic seals;
-   alternative supporting construction(s).

Erweiterter Anwendungsbereich von Prüfergebnissen zur Dauerhaftigkeit des Selbstschließens für Feuerschutz- und/oder Rauchschutztüren und zu öffnende Fenster - Teil 3: Dauerhaftigkeit der Selbstschließung von Schiebetoren aus Stahl

Diese Europäische Norm deckt die folgenden Arten von Stahltoren ab: horizontal öffnende Schiebetore (ein- oder zweiflügelig), Teleskoptore (ein- oder zweiflügelig) und von einer Seite aus vertikal öffnende Schiebetore, wie von EN 15269-7 abgedeckt.
Dieses Dokument schreibt die Methodik zur Erweiterung der Anwendung von Ergebnissen aus Dauerhaftigkeits-Selbstschließungsprüfungen, die nach EN 1634 1 ausgeführt wurden, vor.
In Abhängigkeit von der Durchführung der entsprechenden Prüfung oder Prüfungen zur Selbstschließung, kann der erweiterte Anwendungsbereich einige oder alle Bereiche der nachstehenden unvollständigen Liste abdecken:
   Klassifizierung für nicht wärmegedämmte Abschlüsse (E), Abschlüsse mit Anforderung an Strahlung (EW) oder wärmegedämmte Abschlüsse (EI 1 oder EI 2);
   Türblatt;
   an der Wand/Decke befestigte Elemente (Zarge/Aufhängungssystem);
   Türblatt-Verglasung;
   Baubeschläge;
   dekorative Beschichtungen;
   Aufschäumende Dichtungen, Rauchschutzdichtungen, Zugluft- oder Schallschutzdichtungen;
   Alternative Tragkonstruktion(en).

Application étendue des résultats d’essais de durabilité de la fermeture automatique des blocs-portes et fenêtres ouvrantes résistants au feu et/ou étanches à la fumée - Partie 3 : Durabilité de la fermeture automatique des blocs-portes coulissants en acier

La présente Norme européenne couvre les types suivants de blocs-portes à base d’acier : blocs-portes coulissant horizontalement (simples et doubles), blocs-portes télescopiques (simples et doubles) et blocs-portes simples coulissant verticalement visés par l’EN 15269-7.
Ce document établit la méthodologie d’extension de l’application des résultats d’essai obtenus suite aux essais de durabilité de la fermeture automatique réalisés conformément à l’EN 1634 1.
Sous réserve de la réalisation de l’essai ou des essais appropriés de fermeture automatique, l’application étendue peut couvrir tout ou partie des éléments de la liste non exhaustive suivante :
-   classements d’étanchéité au feu uniquement (E), aux rayonnements (EW) ou à l’isolation thermique (EI1 ou EI2) ;
-   vantail ;
-   éléments fixes muraux/de plafond (structure/système de suspension) ;
-   vitrage pour vantail ;
-   tout élément de quincaillerie de bâtiment ;
-   finitions décoratives ;
-   joints intumescents, joints d’étanchéité aux fumées, joints d’étanchéité à l’air ou joints acoustiques ;
-   autre(s) support(s).

Razširjena uporaba rezultatov preskusov trajnosti samozapiranja za požarno odporna in/ali dimotesna vrata in okna, ki se odpirajo - 3. del: Trajnost samozapiranja jeklenih drsnih vrat

General Information

• Status: Not Published
• Public Enquiry End Date: 19-Sep-2016
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 91.060.50 - Doors and windows
• Technical Committee: ISTP - Doors and windows
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 14-May-2021
• Due Date: 19-May-2021
• Completion Date: 14-May-2021
• Ref Project: prEN 17020-3 - Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows – Part 3: Durability of self-closing of steel sliding doorsets

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 17020-3:2016
01-september-2016
Razširjena uporaba rezultatov preskusov trajnosti samozapiranja za požarno
odporna in/ali dimotesna vrata in okna, ki se odpirajo - 3. del: Trajnost
samozapiranja jeklenih drsnih vrat
Extended application of test results on durability of self-closing for fire resistance and/or
smoke control doorsets and openable windows – Part 3: Durability of self-closing of steel
sliding doorsets
Application étendue des résultats d’essais de durabilité de la fermeture automatique des
blocs-portes et fenêtres ouvrantes résistants au feu et/ou étanches à la fumée - Partie 3 :
Durabilité de la fermeture automatique des blocs-portes coulissants en acier
Ta slovenski standard je istoveten z: prEN 17020-3
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.50 Vrata in okna Doors and windows
oSIST prEN 17020-3:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17020-3:2016


DRAFT
EUROPEAN STANDARD
prEN 17020-3
NORME EUROPÉENNE

EUROPÄISCHE NORM

June 2016
ICS 13.220.50; 91.060.50
English Version

Extended application of test results on durability of self-
closing for fire resistance and/or smoke control doorsets
and openable windows - Part 3: Durability of self-closing
of steel sliding doorsets

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 33.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17020-3:2016 E
worldwide for CEN national Members.

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Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Determination of the field of extended application . 7
4.1 General . 7
4.2 Procedure for evaluation . 7
4.3 Procedure for maximum field of extended application . 7
4.4 Interpretation of test results . 8
5 Extended application report . 8
6 Classification report . 8
Annex A (normative) Construction parameter variations . 9
Annex B (normative) Construction parameter variation simulation by applying additional
weights . 58
Bibliography . 59
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European foreword
This document (prEN 17020-3:2016) has been prepared by Technical Committee CEN/TC 33 “Doors,
windows, shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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Introduction
The EN 15269 series of standards covering extended application of test results for fire resistance
and/or smoke control for door, shutter and openable window assemblies, including their elements of
building hardware, does not include the durability of self-closing of the doorsets following an extended
application process. This document is one of a series of standards intended to be used for the purpose
of producing an extended application report based on the evaluation of one or more durability self-
closing tests. These European Standards may also be used to identify the best selection of test
specimens required to cover a wide range of product variations.
Before there can be any consideration for extended application, the doorset will need to have been
tested in accordance with EN 1634-1 resp. EN 1634-3 and EN 12605/EN 1191 to achieve a test result
which could generate a classification in accordance with EN 13501-2 at least equal to the classification
subsequently required from extended application considerations.
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1 Scope
This European Standard covers the following types of steel based doorsets: horizontally sliding
doorsets (single and double), telescopic doorsets (single and double) and single vertically sliding
doorsets as covered by EN 15269-7.
This document prescribes the methodology for extending the application of test results obtained from
durability self-closing test(s) conducted in accordance with EN 1634-1.
Subject to the completion of the appropriate self-closing test or tests, the extended application may
cover all or some of the following non-exhaustive list:
— integrity only (E), radiation (EW) or insulated (EI1 or EI2) classifications;
— door leaf;
— wall/ceiling fixed elements (frame/suspension system);
— glazing for door leaf;
— items of building hardware;
— decorative finishes;
— intumescent, smoke, draught or acoustic seals;
— alternative supporting construction(s).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 1191, Windows and doors - Resistance to repeated opening and closing - Test method
EN 1363-1, Fire resistance tests - Part 1: General Requirements
EN 1363-2, Fire resistance tests - Part 2: Alternative and additional procedures
EN 1634-1, Fire resistance and smoke control tests for door and shutter assemblies, openable windows and
elements of building hardware - Part 1: Fire resistance test for door and shutter assemblies and openable
windows
EN 1634-3, Fire resistance and smoke control tests for door and shutter assemblies, openable windows and
elements of building hardware - Part 3: Smoke control test for door and shutter assemblies
EN 12433-1, Industrial, commercial and garage doors and gates - Terminology - Part 1: Types of doors
EN 12433-2, Industrial, commercial and garage doors and gates - Terminology - Part 2: Parts of doors
EN 12605, Industrial, commercial and garage doors and gates - Mechanical aspects - Test methods
EN 13501-2:2007+A1:2009, Fire classification of construction products and building elements — Part 2:
Classification using data from fire resistance tests, excluding ventilation services
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EN 15269-1:2010, Extended application of test results for fire resistance and/or smoke control for door,
shutter and openable window assemblies, including their elements of building hardware — Part 1: General
requirements
EN ISO 13943, Fire safety - Vocabulary (ISO 13943)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1191, EN 1363-1,
EN 1363-2, EN 1634-1, EN 1634-3, EN 15269-1, EN 12433-1, EN 12433-2 and EN ISO 13943 and the
following apply.
3.1
full scale test
test of a full size doorset in accordance with EN 12605 and/or EN 1191
3.2
leaf/element/panel
different parts of a doorset as indicated in Figures 1 and 2 below

Key
1 panel
2 leaf
3 element
Figure 1 — Double leaf telescopic door

Key
1 panel
2  leaf
Figure 2 — Double leaf sliding door
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4 Determination of the field of extended application
4.1 General
4.1.1 Before there can be any consideration for extended application the doorset shall have been
tested in accordance with EN 12605 and/or EN 1191 and classified in accordance with EN 13501-2
respectively in order to establish a classification for the doorset.
4.1.2 A review of the doorset construction parameters can indicate that one or more characteristics
may be improved by a particular parameter variation. All evaluations shall be made on the basis of
retaining the classifications obtainable from testing to EN 12605 and/or EN 1191, including those with
a lower number of opening and closing cycles. However, this shall never lead to an increased
classification for any specific parameter beyond that achieved during any one test unless specifically
identified in the relevant Construction Parameter Variation tables.
4.1.3 All evaluations shall be made on the basis of retaining the classification obtained from testing to
EN 1634-1 or EN 1634-3 and EN 12605/EN 1191.
4.1.4 If, by following the extended application procedure, any part of the classified product cannot be
achieved by extended application rules, that part shall be omitted from the subsequent extended
application report and classification report.
4.2 Procedure for evaluation
4.2.1 Identify the variations from the original test specimen(s) which are required to be covered by
an extended application report. Ensure that the variation(s) do(es) not prevent the door from self-
closing.
4.2.2 Locate the variations in the appropriate parameter variation by reference to columns (1) and
(2) of Table A.1.
4.2.3 Establish from the contents of column (4) of Table A.1 whether any extended application is
available without the need for further testing.
4.2.4 Where this is deemed to be possible this can be recorded in the extended application report
together with any appropriate restrictions and the stated rules from column (4) in Table A.1.
4.2.5 Where the variations required can only be achieved from additional testing according to
column (5), the additional test can be made on a similar specimen type to the original test against which
the extended application is sought. Alternatively, column (5) identifies an option for alternative testing
and relevant test parameters.
4.3 Procedure for maximum field of extended application
4.3.1 It is possible to provide a limited field of extended application from the results of a single test.
However, where a manufacturer intends to produce a range of sliding doors incorporating single doors
and also double doors, with or without glazing, with alternative elements of building hardware, etc., it is
recommended that careful consideration is given to the complete range of doorset designs and options
in order to minimize the testing required before testing commences.
4.3.2 Establish all the parameter variations which are required to be part of the product range.
4.3.3 Determine which are the most important specification requirements and incorporate as many
as possible into the specimen(s) for the first tests in the series.
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4.3.4 Conduct the first durability test or a series of tests and then establish which of the original
desired parameter variations have not been covered by this test(s).
4.3.5 Identify these parameter variations in Table A.1 and establish if any extended application is
possible without further testing.
4.3.6 Record this for the extended application report together with any restrictions and rules given in
column (4) in Table A.1.
4.3.7 Evaluate which, if any, of the desired parameter variations have not been covered by the initial
field of extended application derived from 4.3.6 above
4.3.8 Select the required outstanding parameter variations from column (1) and column (2) of
Table A.1 and observe from column (5) of Table A.1 which are the most appropriate weakest specimen
options for further testing.
4.3.9 If the complete selection of required parameter variations has not been covered by the tests
completed in accordance with 4.3.8 and 4.3.9 above, then an appropriate test or tests may be carried
out with the additional product variations incorporated.
4.4 Interpretation of test results
4.4.1 In order to maximize the field of extended application, it is important that the test reports shall
record details of any failures throughout the test duration.
4.4.2 Where a series of tests have been conducted, the field of extended application shall be based on
the lowest performance achieved from the complete series of tests unless premature failure has been
attributed to one or more specific construction parameter variation.
4.4.3 Where it has been possible, to identify specific parameter failures, the extended application for
all other construction parameter variations can be based on the performance achieved after isolating
the premature failure(s).
5 Extended application report
Prepare an extended application report in accordance with the requirements of EN 15269-1:2010,
Clause 6 based on the results of evaluations in accordance with the above.
6 Classification report
The classification report shall be determined from the results of the extended application report and
shall be presented in accordance with EN 13501-2:2007+A1:2009, Annex A.
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Annex A
(normative)

Construction parameter variations
Table A.1 below is designed to be used by experts competent in the field of fire resistance and self-
closing durability testing of steel sliding doorsets.
The table shall only be used to assess a field of extended application when at least one positive self-
closing durability test to EN 12605 and/or EN 1191 has generated a classification according to
EN 13501-2.
The first two columns identify possible variations to the construction details of the specimen tested. It is
presupposed that the variation does not restrain the door closing.
Column (4) leads to the judgement of the possibility of extending the field of application.
Where additional tests are deemed to be necessary, the type of specimen approved for incorporation of
the changed parameter is defined in column (5). Where it is possible to use information from tests
performed on one configuration for evidence on a different configuration, this allowance has been made
in order to reduce the overall number of tests required for extended application evaluation e.g. single
action doorsets to double action doorsets.
Where an additional test is required in column (5), the test is a full scale test unless otherwise specified.
In order to maximize the possible field of application from a minimum number of tests, the parameter
changes have been spread over a series of test specimens. The recommended tests for each parameter
is depending upon the classification required and the preferred direction of testing as indicated in
column (5).
Where more than a single parameter variation is required, the influence on other variations shall also
be taken into account.
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Table A.1 — Construction parameter variations
Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
A Door leaf
A.1 General
Possible providing the overlap of the
single leaf door is similar to the
overlap of the double door (meeting
edge) and all the constructional
A.1.1 Number of leaves (not
Single leaf from double
details have been tested (in the
applicable for vertically = Additional test single leaf doorset
leaf door test
double door), otherwise not possible
sliding doors)
without an additional test.
Any size variations of door leaf shall
be in line with A.2.1 to A.2.4 incl.
A.1.2 Number of leaves (not
Double leaf from single Not possible without an additional Additional test double leaf doorset or
applicable for vertically ≤
leaf door test test double side telescopic
sliding doors)
Possible providing all constructional
A.1.3 Number of elements of details have been tested, otherwise Additional test single or double side
Decrease =
telescopic doors, single leaf not possible without an additional telescopic
test
A.1.4 Number of elements of Not possible without an additional Additional test single or double side
Increase ≤
telescopic doors, single leaf test telescopic
Possible providing all constructional
A.1.5 Number of elements of details have been tested and the
telescopic doors, double Decrease ≥ reduction of elements is the same for Additional test double side telescopic
leaf — See Figure A.1 both leaves, otherwise not possible
without an additional test
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Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
A.1.6 Number of elements of
telescopic doors, double Not possible without an additional
Increase ≤ Additional test double side telescopic
leaf (not applicable for test
vertically sliding doors)
Possible if tested at least one leaf
(single, primary or secondary) with
the minimum of two panels and the
A.1.7 Number of panels per
Additional test single or double leaf
intended jointing technique centrally
leaf/element- See Add > / = / <
doorset
located in the door leaf.
Figure A.2
Otherwise not possible without an
additional test
A.1.8 Number of panels per
leaf/element- See Reduce = Possible
Figure A.3
A.2 Size variations/single or multiple panel construction
A.2.1 Size (area, width, height) of
Decrease ≥ Possible
door leaf
Possible providing the requirements Additional test double for single and
A.2.2 Width of door leaf — See
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
Figure A.4 a) and A.4 b)
possible without an additional test leaf door sets
Possible providing the requirements Additional test double for single and
A.2.3 Height of door leaf — See
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
Figure A.5
possible without an additional test leaf door sets
Possible providing the requirements Additional test double for single and
A.2.4 Area of door leaf Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
possible without an additional test leaf door sets
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Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
A.2.5 Width of vertical door leaf
panel for a sliding door Decrease = Possible
with more than one panel
Possible providing the requirements Additional test double for single and
A.2.6 Height of vertical door leaf
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
panel
possible without an additional test leaf door sets
A.2.7 Height of vertical door leaf
Decrease = Possible
panel
Possible providing the requirements Additional test double for single and
A.2.8 Width of vertical door leaf
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
panel
possible without an additional test leaf door sets
Possible providing the requirements Additional test double for single and
A.2.9 Area of vertical door leaf
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
panel
possible without an additional test leaf door sets
A.2.10 Number of horizontal
Increase = Possible
joints between panels
Possible
A.2.11 Number of horizontal
decrease =
joints between panels

Possible providing the requirements
Additional test double for single and
of Annex B are fulfilled and by a
double leaf door sets or single for single
maximum of 25 %,
A.2.12 Thickness of the door leaf increase > / = / <
leaf door sets
otherwise not possible without an

additional test
Possible by a maximum of 25 %,
Additional test double for single and
A.2.13 Thickness of the door leaf Decrease ≤ double leaf door sets or single for single
otherwise not possible without an
leaf door sets
additional test
A.3 Materials and constructions
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Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
Possible providing the requirements Additional test double for single and
A.3.1 Density of core material Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
possible without an additional test leaf door sets
A.3.2 Density of core material Decrease = Possible
Possible providing the requirements Additional test double for single and
A.3.3 Thickness of core material Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
possible without an additional test leaf door sets
A.3.4 Thickness of core material Decrease = Possible
A.3.5 Pattern of core material —
Increase number of pieces = Possible
See Figure A.6
A.3.6 Pattern of core material — Decrease number of
= Possible
See Figure A.7 pieces
A.3.7 Number of layers of
identical core material — Increase = Possible
See Figure A.8
A.3.8 Number of layers of
identical core material — Decrease = Possible
See Figure A.9
A.3.9 Number of layers of
different materials — See Increase = Possible
Figure A.10
A.3.10 Number of layers of
different materials — See Decrease = Possible
Figure A.11
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Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
Change of
A.3.11 Core material (single
supplier/manufacturer of
thickness or in
identical material with = Possible
combination of different
identical composition and
layers)
properties
A.3.12 Type of core material
(single thickness or in
Alternative composition = Possible
combination of different
layers)
2
A.3.13 Amount of adhesives/m –
Increase = Possible
Products < Euroclass A1
2
A.3.14 Amount of adhesives/m –
Decrease = Possible
Products < Euroclass A1
2
A.3.15 Amount of adhesives/m –
Increase = Possible
Products of Euroclass A1
2
A.3.16 Amount of adhesives/m –
Decrease = Possible
Products of Euroclass A1
Change of
supplier/manufacturer of
A.3.17 Type of adhesives identical material with = Possible
identical composition and
properties
A.3.18 Type of adhesives Alternative composition = Possible
A.3.19 Metal armour sheet
Possible providing the requirements Additional test double for single and
(internally or externally
Add > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
mounted) — See
possible without an additional test leaf door sets
Figure A.12 a)
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Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
A.3.20 Metal armour sheet
(internally or externally
Remove = Possible
mounted) — See
Figure A.12 b)
A.3.21 Thickness of steel sheet, Possible providing the requirements Additional test double for single and
(if not part of the interlock Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
system) possible without an additional test leaf door sets
A.3.22 Thickness of steel sheet, Additional test double for single and
Possible by a maximum of 25 %, more
(if not part of the interlock Decrease > / = / < double leaf door sets or single for single
than 25 % needs an additional test
system) leaf door sets
A.3.23 Type of steel sheet Mild to stainless = Possible
A.3.24 Type of steel sheet Stainless to mild = Possible
A.3.25 Type of steel for stiffeners
Mild to stainless = Possible
and profiles
A.3.26 Type of steel for stiffeners
Stainless to mild = Possible
and profiles
Possible providing the requirements Additional test double for single and
A.3.27 Cross-section dimension
Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
of stiffening elements
possible without an additional test leaf door sets
Additional test double for single and
A.3.28 Cross-section dimension Possible by a maximum of 25 %, more
Decrease > / = / < double leaf door sets or single for single
of stiffening elements than 25 % needs an additional test
leaf door sets
A.3.29 Number of intermediate Possible providing the requirements Additional test double for single and
stiffening elements per Increase > / = / < of Annex B are fulfilled, otherwise not double leaf door sets or single for single
panel possible without an additional test leaf door sets
15

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oSIST prEN 17020-3:2016
prEN 17020-3:2016 (E)
Influence of variation
Construction Parameter Variation on performance Possibility of extension Additional Evidence Required
characteristic
(1) (2) (3) (4) (5)
Possible proportional to the decrease
A.3.30 Number of intermediate Additional test double for single and
of height or width of the panel, as
stiffening elements per Decrease > / = / < double leaf door sets or single for single
appropriate, otherwise not possible
panel leaf door sets
without an additional test
Possible proportional to the increase
A.3.31 Spacing of intermediate Additional test double for single and
of height or width of the panel, as
stiffening elements per Increase > / = / < double leaf door sets or single for single
appropriate, otherwise not possible
panel leaf door sets
without an additional test
Possible proportional to the decrease
A.3.32 Spacing of intermediate Additional test double for single and
of height or width of the panel, as
stiffening elements
...