EN 13126-6:2018

Building hardware - Hardware for windows and door height windows - Requirements and test methods - Part 6: Variable geometry stay hinges (with or without a friction stay)

This part of EN 13126 specifies requirements and test methods for durability, strength, security and function of mechanically operated variable/parallel geometry stay hinges (with or without a friction system) whether fitted, with integral restrictors or not, in accordance with common application as shown in informative Annex D.
By means of this standard, the user of recognized tested hardware can assume that with correct usage, the variable/parallel geometry stay hinges (with or without a friction system) for windows conform to prescribed requirements.
NOTE 1 Balancing stay arms/hinges do not represent a friction system.
NOTE 2 For the purposes of this standard, the friction system is achieved by friction pads or similar.

Baubeschläge - Beschläge für Fenster und Fenstertüren - Anforderungen und Prüfverfahren - Teil 6: Scheren mit veränderlicher Geometrie (mit oder ohne Friktionssystem)

Dieser Teil der Normenreihe EN 13126 legt die Anforderungen und Prüfverfahren für die Dauer-funktionsfähigkeit, Festigkeit, Schutzwirkung und Funktionsweise von mechanisch betätigten Scheren mit veränderlicher/paralleler Geometrie (mit oder ohne Friktionssystem), egal ob mit oder ohne eingebauter Vorrichtung zur Begrenzung des Öffnungswinkels, entsprechend den im informativen Anhang D dar-gestellten üblichen Anwendungen fest.
Mit Hilfe dieser Norm kann der Anwender von anerkannten geprüften Baubeschlägen davon ausgehen, dass die Scheren mit veränderlicher/paralleler Geometrie (mit oder ohne Friktionssystem) für Fenster bei richtigem Gebrauch die vorgeschriebenen Anforderungen erfüllen.
ANMERKUNG 1 Aussteller/Ausstellscheren stellen kein Friktionssystem dar.
ANMERKUNG 2 Für die Anwendung dieser Norm wird das Friktionssystem durch Bremsplatten oder etwas Gleichartiges erreicht.

Quincaillerie pour le bâtiment - Exigences et méthodes d’essai des ferrures de fenêtres et portes-fenêtres - Partie 6 : Compas à géométrie variable (avec ou sans système de friction)

La présente partie de l’EN 13126 spécifie les exigences et les méthodes d’essai relatives à l’endurance, à la résistance, à la sécurité des biens et au fonctionnement des compas mécaniques à géométrie variable/parallèle (avec ou sans système de friction), qu’ils soient équipés ou non de limitateurs d’ouverture intégrés, en conformité avec leur application courante représentée dans l’Annexe D informative.
La présente norme permet à l’utilisateur d’une ferrure éprouvée par essai de considérer que lorsqu’ils sont utilisés correctement, les compas à géométrie variable/parallèle (avec ou sans système de friction) des fenêtres sont conformes aux exigences spécifiées.
NOTE 1   Les compas ou bras de compas d’équilibrage ne constituent pas un système de friction.
NOTE 2   Pour les besoins de la présente norme, la friction est réalisée par des patins de friction ou des pièces similaires.

Stavbno okovje - Okovje za okna in zastekljena vrata - Zahteve in preskusne metode - 6. del: Oporni tečaji z različno geometrijo (s sistemom trenja ali brez njega)

Ta del standarda prEN 13126 določa zahteve in preskusne metode za trajnost, trdnost, varnost in delovanje mehansko upravljanih opornih tečajev z različno/vzporedno geometrijo (s sistemom trenja ali brez njega) ter nameščenimi zaklepi ali brez njih v skladu z običajno uporabo, kot je podana v informativnem dodatku D.
Na podlagi tega standarda lahko uporabnik priznanega preskušenega okovja sklepa, da pravilna uporaba opornih tečajev z različno/vzporedno geometrijo (s sistemom trenja ali brez njega) za okna omogoča skladnost z opisanimi zahtevami.
OPOMBA 1:   Izravnalne oporne ročice/tečaji ne predstavljajo sistema trenja.
OPOMBA 2:   Za namene tega standarda je sistem trenja dosežen z zavorno ploščico ali podobnim elementom.

General Information

• Status: Published
• Publication Date: 14-Aug-2018
• Withdrawal Date: 27-Feb-2019
• ICS: 91.190 - Building accessories
• Technical Committee: CEN/TC 33 - Doors, windows, shutters and building hardware
• Drafting Committee: CEN/TC 33/WG 4 - Building hardware
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 04-Mar-2024
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 13126-6:2018 - Building hardware - Hardware for windows and door height windows - Requirements and test methods - Part 6: Variable geometry stay hinges (with or without a friction stay)

Relations

• Replaces: EN 13126-6:2008 - Building hardware - Requirements and test methods for windows and doors height windows - Part 6: Variable geometry stay hinges (with or without a friction stay)
• Effective Date: 08-Jun-2022

Overview

EN 13126-6:2018 (CEN) is the European standard that specifies requirements and test methods for mechanically operated variable/parallel geometry stay hinges for windows (with or without an integrated friction stay). The standard covers durability, strength, security and functional performance for stay hinges used in common window types (illustrated in informative Annex D). It is part of the EN 13126 series for building hardware and supersedes EN 13126-6:2008.

Key phrases: building hardware, stay hinges, variable geometry, parallel geometry, friction stay, EN 13126-6.

Key topics and technical requirements

• Scope and product definition

  • Applies to mechanically operated variable/parallel geometry stay hinges, whether with an integral restrictor and with or without friction pads (friction system).
  • Clarifies that balancing stay arms are not classed as a friction system.

• Classification

  • Products are classified across multiple boxes: Durability, Mass, Corrosion resistance, Test sizes, and Application.
  • Durability grades include H1 (5 000 cycles), H2 (10 000 cycles) and H3 (20 000 cycles).

• Test methods

  • Detailed procedures for: pull-in, pull-in abuse, parallelism, friction testing, obstructed track, ease of sash movement, durability cycling, simulated negative pressure, static load, additional load and corrosion resistance.
  • Test equipment, specimen mounting, adjustment and acceptance criteria are specified to ensure reproducible, objective assessment.

• Documentation and marking

  • Requirements for specimen selection, marking and information to be supplied with tested hardware are included.

• Annexes

  • Informative annexes provide types of stay hinges (Annex A), test diagrams (Annex B), test-flow charts (Annex C) and example window types (Annex D).

Applications and who uses the standard

• Manufacturers of window hardware use EN 13126-6 to design and validate stay hinges that meet European performance expectations.
• Test laboratories implement the specified procedures to certify durability, strength and function.
• Architects, specifiers and façade engineers reference the standard to select compliant hardware for residential and commercial windows.
• Installers and building compliance officers rely on the standard’s classifications and marking to confirm correct product selection and safe installation.
• Product certification bodies use EN 13126-6 as the basis for product declarations and performance labels.

Related standards

• EN 13126 series (other parts cover different window and door hardware). EN 13126-6:2018 is independent from EN 13126-1 and contains all necessary information for variable/parallel geometry stay hinges.

Using EN 13126-6 helps ensure consistent, measurable performance for stay hinges-improving safety, reliability and compliance in window hardware across Europe.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2018
1DGRPHãþD
SIST EN 13126-6:2009
6WDYEQRRNRYMH2NRYMH]DRNQDLQ]DVWHNOMHQDYUDWD=DKWHYHLQSUHVNXVQH
PHWRGHGHO2SRUQLWHþDML]UD]OLþQRJHRPHWULMRVVLVWHPRPWUHQMDDOLEUH]
QMHJD
Building hardware - Hardware for windows and door height windows - Requirements and
test methods - Part 6: Variable geometry stay hinges (with or without a friction stay)
Baubeschläge - Beschläge für Fenster und Fenstertüren - Anforderungen und
Prüfverfahren - Teil 6: Scheren mit veränderlicher Geometrie (mit oder ohne
Friktionssystem)
Quincaillerie pour le bâtiment - Exigences et méthodes d’essai des ferrures de fenêtres
et portes-fenêtres - Partie 6 : Compas à géométrie variable (avec ou sans système de
friction)
Ta slovenski standard je istoveten z: EN 13126-6:2018
ICS:
91.190 Stavbna oprema Building accessories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13126-6
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 91.190 Supersedes EN 13126-6:2008
English Version
Building hardware - Hardware for windows and door
height windows - Requirements and test methods - Part 6:
Variable geometry stay hinges (with or without a friction
stay)
Quincaillerie pour le bâtiment - Exigences et méthodes Baubeschläge - Beschläge für Fenster und Fenstertüren
d'essai des ferrures de fenêtres et portes-fenêtres - - Anforderungen und Prüfverfahren - Teil 6: Scheren
Partie 6 : Compas à géométrie variable (avec ou sans mit veränderlicher Geometrie (mit oder ohne
système de friction) Friktionssystem)
This European Standard was approved by CEN on 30 April 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13126-6:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Classification . 7
4.1 General . 7
4.2 Durability (1 – first box) . 8
4.3 Mass (2 – second box) . 8
4.4 Corrosion resistance (3 – third box) . 8
4.5 Test sizes (4 – fourth box) . 8
4.6 Application (5 – fifth box) . 10
4.7 Example of classification for variable/parallel geometry stay hinges . 10
5 Requirements . 10
5.1 Dangerous substances . 10
5.2 Integrated restrictors . 11
5.3 Durability . 11
5.4 Pull-in and pull-in abuse test . 11
5.5 Parallelism test . 11
5.6 Friction test (where applicable) . 11
5.7 Obstructed track test . 12
5.8 Ease of sash movement test . 12
5.9 Durability test. 12
5.10 Simulated negative pressure test . 13
5.11 Static load test . 13
5.12 Additional load test . 14
5.13 Corrosion resistance . 14
6 Test equipment and preparation for the test . 14
6.1 Test-rig . 14
6.2 Specimen . 14
6.3 Mounting of specimen . 15
6.4 Additional equipment. 15
6.4.1 Block for pull-in abuse test . 15
6.4.2 Steel cross for simulated negative pressure test . 15
7 Test procedures . 15
7.1 Samples . 15
7.2 General . 15
7.3 Adjusting the sash-mass . 16
7.4 Lubrication and adjustment of hardware . 16
7.5 Pull-in test . 16
7.5.1 General . 16
7.5.2 Pull-in test procedure . 16
7.5.3 Acceptance criteria . 16
7.6 Friction test . 17
7.6.1 General . 17
7.6.2 Friction test procedure . 17
7.6.3 Acceptance criteria . 17
7.7 Obstructed track test . 17
7.7.1 Procedure – side hung and top hung windows . 17
7.7.2 Procedure – parallel opening windows . 18
7.7.3 Acceptance criteria . 18
7.8 Pull-in abuse test . 18
7.8.1 General . 18
7.8.2 Procedure – pull-in abuse test . 18
7.8.3 Acceptance criteria . 19
7.9 Ease of sash movement test . 19
7.9.1 Procedure – side and top hung opening windows . 19
7.9.2 Procedure – parallel opening windows . 19
7.9.3 Acceptance criteria . 19
7.10 Durability test . 20
7.10.1 Procedure – top hung and side hung windows . 20
7.10.2 Procedure – parallel opening windows . 20
7.10.3 Cycles . 20
7.10.4 Egress easy clean side hung windows . 20
7.10.5 Acceptance criteria . 20
7.11 Simulated negative pressure test (excluding parallel windows) . 21
7.11.1 Procedure . 21
7.11.2 Acceptance criteria . 21
7.12 Static load test procedure . 21
7.12.1 Procedure . 21
7.12.2 Acceptance criteria . 22
7.13 Additional load test . 22
7.13.1 Procedure . 22
7.13.2 Acceptance criteria . 22
7.14 Parallelism test . 22
7.14.1 Procedure – closed position . 22
7.14.2 Procedure – open position . 22
7.14.3 Acceptance criteria . 22
7.15 Corrosion resistance. 23
8 Marking . 23
Annex A (informative) Types of variable/parallel geometry stay hinges . 24
Annex B (informative) Test method diagrams . 26
Annex C (informative) Flow chart of test procedures. 34
Annex D (informative) Window types . 36
Bibliography . 40

European foreword
This document (EN 13126-6:2018) 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 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 February 2019, and conflicting national standards
shall be withdrawn at the latest by February 2019.
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.
This document supersedes EN 13126-6:2008.
This European Standard is one of a series of European Standards for building hardware products for
windows and door height windows. This European Standard is independent of part 1 of EN 13126.
The performance tests incorporated in this European Standard are considered to be reproducible and
as such will provide a consistent and objective assessment of the performance of these products
throughout CEN Member States.
A list of all parts in the EN 13126 series can be found on the CEN-CENELEC website.
In comparison with EN 13126-6:2008, the following significant changes were made:
— EN 13126-6 now is independent from EN 13126-1; all necessary information is included without
the need of any further information from part 1;
— several editorial changes in the wording for a better understanding and to cover variable/parallel
geometry stay hinges in the whole standard;
— under Clause 1 'Scope', variable/parallel geometry stay hinges (with or without a friction system)
added; former Note 1 deleted;
— under term number 3.2, definition added for parallel geometry stay hinge (with or without a
friction system);
— the term 'parallelism' added under term number 3.7;
— the term 'egress easy clean' added under term number 3.8;
— terms 'sample', 'specimen' and 'test-rig' added under term numbers 3.9, 3.10 and 3.11;
— under 4.1, classification system changed completely; former digits 1 (Category of use), 4 (Fire
resistance), 5 (Safety in use), 7 (Security) and 8 (Applicable part) deleted; former digit 2 changed
into box 1 (Durability), former digit 3 changed into box 2 (Mass), former digit 6 changed into box 3
(Corrosion resistance), former digit 9 changed into box 4 (Test sizes) and former digit 8
(application) transferred into box 5 (application);
— under 4.2, new grades for the number of cycles defined; H1 (5 000), H2 (10 000) and H3 (20 000)
with the same number of cycles for the tilt and the turn cycles; refer also to 5.3;
— under 4.7, new example added for the new classification;
— under 4.5, new Table 5 added with "Test window size for parallel geometry opening stay hinges';
— under 5.5, 'Parallelism test' added;
— under 5.9, Table 8 'Durability test sequence' amended;
— under Clause 6, 'Test equipment and preparation for the test' additional information added for the
test rig (6.1), the specimen (6.2), the mounting of the specimen (6.3), additional equipment (6.4);
— under 7.2, 'General' additional information added for the testing procedure;
— under 7.3, 'Adjusting the sash-mass' information added, mainly from the current version of part 1;
— under 7.4, 'Lubrication and adjustment of hardware', mainly from the current version of part 1;
— under 7.7.2, 'Procedure – parallel opening windows' added for the obstructed track test (7.7);
— under 7.9.2, 'Procedure – parallel opening windows' added for the ease of sash movement test
(7.9);
— Annex A and Annex B amended with figures regarding parallel geometry opening stay hinges;
— new flowcharts added in Annex C;
— new informative Annex D with window types.
A full contribution to the preparation of this European Standard has been made by the European
manufacturer’s organization ‘ARGE’ and National Standards institutions.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This part of EN 13126 specifies requirements and test methods for durability, strength, security and
function of mechanically operated variable/parallel geometry stay hinges (with or without a friction
system) whether fitted, with integral restrictors or not, in accordance with common application as
shown in informative Annex D.
By means of this standard, the user of recognized tested hardware can assume that with correct usage,
the variable/parallel geometry stay hinges (with or without a friction system) for windows conform to
prescribed requirements.
NOTE 1 Balancing stay arms/hinges do not represent a friction system.
NOTE 2 For the purposes of this standard, the friction system is achieved by friction pads or similar.
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 1670, Building hardware - Corrosion resistance - Requirements and test methods
EN 13126-5, Building hardware - Hardware for windows and door height windows - Requirements and
test methods - Part 5: Devices that restrict the opening of windows and door height windows
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
NOTE The following terms and definitions apply to windows and door height windows made of wood, PVC-U,
aluminium or steel and their appropriate material combinations.
3.1
variable geometry stay hinge – with or without a friction system
hinge mechanism which has one or more link arms connecting the frame to the opening casement; the
point about which the casement pivots being near the outer end of a link arm.; the freedom of
movement of the variable geometry stay hinge system is either controlled by the friction between some
or all of its moveable components or through an adjustable friction system
Note 1 to entry: Friction is usually applied either at the pivot points or between a sliding shoe and its track.
3.2
parallel geometry stay hinge – with or without a friction system
hinge mechanism which has one or more link arms connecting the frame to the opening casement;
projecting parallel to the plane of the frame; the freedom of movement of the parallel geometry stay
hinge system is either controlled by the friction between some or all of its moveable components or
through an adjustable friction system
Note 1 to entry: Friction is usually applied either at the pivot points or between a sliding shoe and its track.
3.3
working stack height
perpendicular distance between the outer faces of the frame plate and casement plate of a
variable/parallel geometry stay hinge (with or without a friction system)
3.4
pull-in
characteristic of the design of the pivoting variable/parallel geometry stay hinge (with or without a
friction system), which maintains the non-locking edge of a casement in contact with the window frame
or weather stripping when the casement fastener is closed
3.5
integrated restrictor
mechanism that is an integral part of the variable/parallel geometry stay hinge (with or without a
friction system) that limits the initial opening of the window
3.6
declared minimum opening
distance measured between the nearest adjacent edges of the sash and frame as the outward
movement, from fully closed to where the friction in a variable/parallel geometry stay hinge with a
friction system is sufficient to conform to the requirements of 7.6
3.7
parallelism
ability of the plane of the sash to remain parallel to the plane of the frame in the open position
3.8
egress easy clean
designed secondary function within a variable geometry stay hinge that allows an opening on the
hinges side of the window to allow for cleaning of the outside surface of the glass
3.9
sample
actual hardware components to be tested
3.10
specimen
window to accommodate hardware components (samples) for testing
3.11
test-rig
testing device onto which the specimen is mounted
4 Classification
4.1 General
Variable/parallel geometry stay hinges (with or without a friction system) for windows and door height
windows shall be classified in accordance with the five box coding system (see Table 1).
Table 1 — Classification system of hardware
box 1 2 3 4 5
Corrosion Test
Durability Mass Application
resistance sizes
4.2 Durability (1 – first box)
The first box shall display the grade applied to the durability test in accordance with 5.3:
— grade H1:  5 000;
— grade H2:  10 000;
— grade H3:  20 000.
4.3 Mass (2 – second box)
The second box shall display the maximum tested sash-mass (weight).
The mass range starts from 10 kg and varies in steps of 5 kg up to 50 kg. After that the mass varies
unlimited in steps of 10 kg. An unlimited number of grades are identified, whereby 010 is the lowest
(see Table 2).
Table 2 — Tested sash-mass
Grade 010 015 020 025 030 035 040 045 050 060 070 080 …
Mass
10 15 20 25 30 35 40 45 50 60 70 80 …
(kg)
The mass of the test sash shall be determined in accordance with the claims made by the hardware
manufacturer.
4.4 Corrosion resistance (3 – third box)
The third box shall display the grade regarding corrosion resistance in accordance with 5.13.
4.5 Test sizes (4 – fourth box)
The fourth box shall display the test sizes which were used for testing the hardware.
All sizes are stated in mm, SW x SH (SW = Sash Width, SH = Sash Height) with a tolerance of ± 2 mm.
Where a variable geometry stay hinge (with or without friction) operates on a horizontal axis of
rotation, the test size is determined in accordance with Table 3.
Where a variable geometry stay hinge (with or without friction) operates on a vertical axis of rotation,
the test size is determined in accordance with Table 4.
Where a parallel opening geometry stay hinge (with or without friction) operates on a parallel plane,
the test size is determined in accordance with Table 5.
Table 3 — Test window size for top hung variable geometry stay hinges
Overall length of variable geometry stay hinge Sash width Sash height
mm mm mm
< 250 1 200 300
≥ 251 ≤ 350 1 200 450
≥ 351 ≤ 450 1 200 600
≥ 451 ≤ 550 1 200 750
≥ 551 ≤ 750 1 200 900
≥ 751 1 200 1 200
When a hardware manufacturer specifies a different sash width and / or sash height in relation to the
overall length of the variable/parallel geometry stay hinge (with or without friction system) the
hardware shall be tested on the largest window size specified.
Table 4 — Test window size for side hung variable geometry stay hinges
Overall length of variable geometry stay hinge Sash width Sash height
mm mm mm
< 250 600 1 200
≥ 251 ≤ 500 750 1 200
≥ 501 900 1 200
When a hardware manufacturer specifies a different sash width and / or sash height in relation to the
overall length of the variable/parallel geometry stay hinge (with or without friction system) the
hardware shall be tested on the largest window size specified.
Table 5 — Test window size for parallel geometry opening stay hinges
Overall length of parallel geometry stay hinge Sash width Sash height
mm mm mm
< 300 1 200 750
≥ 301 ≤ 500 1 200 1 000
≥ 501 1 200 2 000
When a hardware manufacturer specifies a different sash width and / or sash height in relation to the
overall length of the variable/parallel geometry stay hinge (with or without friction system) the
hardware shall be tested on the largest window size specified.
If additional control arms are needed to meet the specification then the manufacturer must specify and
provide these parts for the test.
4.6 Application (5 – fifth box)
The fifth box shall display a number (grade) indicating the kind of hardware in accordance with the
foreseen application in the appropriate type of window:
— grade 1: indicating hardware for windows operated on a horizontal axis of rotation;
— grade 2: indicating hardware for windows operated on a vertical axis of rotation;
— grade 3: indicating hardware for windows operates on both horizontal and vertical axis of rotation;
— grade 4: indicating hardware for windows operates on a parallel plane.
4.7 Example of classification for variable/parallel geometry stay hinges
a) Alternative 1: Table with boxes
Table 6 — Example of classification for variable/parallel geometry stay hinges
1 2 3 4 5
EN 13126-6:YYYY H3 020 3 1200/900 1
In accordance with Clause 8 the information regarding the classification by using a table with boxes
shall always be shown together with the number of this standard EN 13126-6.
b) Alternative 2: Alphanumerical
EN 13126-6:YYYY H3-020-3-1200/900-1
This denotes variable/parallel geometry stay hinges (with or without a friction system), which has the
following:
box 1 durability grade H3 (20 000 cycles)
box 2 mass 20 kg
box 3 corrosion grade 3
resistance
box 4 test sizes SW (Sash Width) = 1 200 mm, SH (Sash Height) = 900 mm
box 5 application grade 1; hardware for windows operating on a horizontal axis
of rotation
5 Requirements
5.1 Dangerous substances
Materials in products should not release any dangerous substances in excess of the maximum levels
specified in the European material standards and any National regulations.
5.2 Integrated restrictors
Where variable/parallel geometry stay hinges (with or without a friction system) are fitted with an
integrated restrictor, the hardware shall be tested in accordance with EN 13126-5.
Any integrated or additional restrictor shall be disabled before any testing commences.
5.3 Durability
Three different grades:
— grade H1:   5 000 cycles (+ 1 %);
— grade H2:   10 000 cycles (+ 1 %);
— grade H3:   20 000 cycles (+ 1 %).
5.4 Pull-in and pull-in abuse test
The test specified in 7.5 and 7.8 shall be used to ensure that the pull-in on the variable geometry stay
hinge (with or without a friction system) can maintain the contact between the non-locking edge of a
casement and the window frame or weather stripping when the casement fastener is closed while
under force.
On completion of the pull-in test in accordance with 7.5 and the pull-in abuse test in accordance with
7.8, the recorded additional displacement of the datum surfaces shall be a maximum of 0,5 mm.
5.5 Parallelism test
The test specified in 7.14 shall be used to ensure that the plane of parallelism on the parallel geometry
hinges (with or without friction) can consistently maintain the sash position parallel to the plane of the
frame.
The difference between the measured clearance gap at all corners shall not be greater than 1,5 mm per
metre length of the sash height.
5.6 Friction test (where applicable)
The test specified in 7.6 shall be used to ensure that the friction of variable/parallel geometry stay hinge
with a friction system shall be sufficient to maintain the open position against the applied force in either
direction.
The declared value for the minimum opening of the variable/parallel geometry stay hinge with a
friction system, where the friction level conforms to the requirements of 7.6, shall be stated in the
descriptive literature. Where no minimum test opening is declared, the value shall be assumed to be
100 mm.
The value for the maximum opening is either the furthest open position that the hardware allows or the
declared maximum opening distance or opening angle as stated in the manufacturers’ literature.
The maximum opening position is measured as a chord across the opening and between the nearest
adjacent edges of the sash and frame.
NOTE 1 The declared values can vary for different sizes of variable/parallel geometry stay hinges with a
friction system and/or for different mass classifications. This can be noted on the test report, including the hinge
size and maximum mass classification.
NOTE 2 In service an additional friction or other restraining device might be required to prevent unintentional
closure of the casement from an angle of opening less than the declared minimum for any selected
variable/parallel geometry stay hinges (with or without a friction system).
The friction ability should only be tested for variable/parallel geometry stay hinges with a friction
system.
Table 7 — Hinge parameters
Open position of sash for friction test
Declared Declared
minimum panel maximum panel
Min. 100 200 300 Max.
opening
opening
opening mm mm mm opening
≤ 100 ≤ 100 X    X
100 ≥ 101 ≤ 200  X   X
100 ≥ 201 ≤ 300  X X  X
100 ≥ 300  X X X
200 ≥ 200 ≤ 300   X  X
200 ≥ 300   X X
300 ≥ 300    X
The friction ability shall be measured at all points identified in Table 7 with X.
On completion of the friction test in accordance with 7.6, the measured opening shall not have changed
by more than 1 mm.
5.7 Obstructed track test
The test specified in 7.7 shall be used to determine the resistance to abusive forces applied in the event
of the hardware being prevented from operating normally due to obstruction.
On completion of the obstructed track test in accordance with 7.7, the variable/parallel geometry stay
hinge (with or without friction system) shall continue to function normally.
5.8 Ease of sash movement test
The test specified in 7.9 shall be used to determine the forces required to operate the hardware is
appropriate for the intended use.
On completion of the ease of sash movement test in accordance with 7.9:
— the force required to initiate movement in either the opening or closing direction shall not exceed
100 N;
— the force required to sustain movement in either the opening or closing direction shall not exceed
100 N.
5.9 Durability test
The test specified in 7.10 shall be used to ensure that the hardware is capable of continued operation
after cycling in accordance with grades specified in 7.10, with regard given to normal maintenance. The
test sequence is shown in Table 8.
Table 8 — Durability test sequence
Sequence Requirements (where applicable)
Egress easy clean release in accordance with 7.10.4
Pull-in test in accordance with 7.5
Parallelism close sash test with 7.14.1
Before durability test
Parallelism open sash test with 7.14.2
Friction test in accordance with 7.6
Ease of sash movement test 7.9
Total of 20 cycles If required, reset friction in accordance with 7.6
Egress easy clean release in accordance with 7.10.4
Pull-in test in accordance with 7.5
After durability test Friction test in accordance with 7.6
Parallelism close sash test with 7.14.1
Parallelism open sash test with 7.14.2
On completion of the durability test in accordance with 7.10, the variable/parallel geometry stay hinge
(with or without friction system) shall continue to function normally.
5.10 Simulated negative pressure test
The test specified in 7.11 shall be used to ensure the pull-in on the variable geometry stay hinge (with
or without a friction system) can maintain the contact between the non-locking edge of a casement and
the window frame or weather stripping when the window is closed while under the force specified in
Table 9.
Table 9 — Required force
Distance between datum points Applied force
+50
N
1000Ν
≤ 1 000 mm
+50
1500Ν N
> 1 000 mm
On completion of the simulated negative pressure test in accordance with 7.11, the recorded additional
displacement of the datum surfaces (datum points – see Figure B.5) shall be a maximum of 1,5 mm.
5.11 Static load test
The test specified in 7.9 shall be used only on side hung or parallel opening windows to ensure the
mechanical strength of the hardware is appropriate for the intended use.
On completion of the static load test in accordance with 7.12:
— The variable/parallel geometry stay hinge (with or without friction system) shall continue to
function normally;
— The measured clearance gap between the datum surfaces and frame shall not have increased by
more than 3 mm from the measured clearance gap prior to the test commencing.
5.12 Additional load test
The test specified in 7.13 shall be used on side hung or parallel opening windows to comply with safety
in use.
On completion of the additional load test in accordance with 7.13, the variable/parallel geometry stay
hinge (with or without friction system) shall continue to hold the sash.
NOTE Permanent deformation of the hardware is acceptable.
5.13 Corrosion resistance
Hardware shall conform to the grades listed in EN 1670.
Unless already stated with a test report by the manufacturer, relevant components which are
representative for the hardware shall be tested in accordance with EN 1670. As specified in EN 1670
the hardware components shall not be mounted on a window profile for the corrosion test.
6 Test equipment and preparation for the test
6.1 Test-rig
The test-rig shall be so rigid that any deformation during the tests shall have no influence on the results.
The test shall be conducted on a test-rig which corresponds in function and shape to the sash for which
the hardware is intended. The dimensions of the test-rig shall conform to 4.5.
6.2 Specimen
The variable/parallel geometry stay hinge (with or without a friction system) shall be installed in the
specimen for testing in accordance with the manufacturer's fixing instructions. The hardware tested
shall conform to the manufacturer's recommendations for size and mass of the specimen. The tolerance
for the specimen (test sizes) is ± 2 mm.
The specimen shall be infilled with an adequately rigid timber-based panel, PVC, steel or timber-
composite material; this substitutes the glazing.
The specimen shall be installed in a supporting sub-frame using common-practice building procedures.
A circumferential clearance of 5-10 mm between the frame member and the sub-frame shall be used;
the area at the fasteners should be compression resistant packed. As a rule, fixings should be spaced
(150 ± 50) mm from the corners; additional fixings shall be with a distance of 400 to 600 mm.
The specimen shall be provided with adjustable datum surfaces near the free corners of the edge of the
casements, opposite to its detected locking rail, so that wear and loss of pull-in can be detected.
Any gap between sash and outer frame shall be equal to the working stack height of the
+1
variable/parallel geometry stay hinge (with or without a friction system) mm.
If the fixing position of the variable/parallel geometry stay hinge (with or without a friction system) is
not specified, the variable/parallel geometry stay hinge (with or without a friction system) shall be
mounted with its centre line in the plane containing the centre of gravity of the sash, or test panel, to ±
3 mm and as close to its free corners as practicable.
The general tolerance in this standard is +5 % unless otherwise specified.
The hardware manufacturer shall provide test specimens for the testing institute. A drawing of the
profile cross-section with relevant information shall be enclosed in the test application, which also
contains the necessary hardware installation information for the windows.
Purpose-built steel test apparatus may also be used. Mounting blocks should be used to ensure the
fixing gap on the test apparatus is equal to the working stack height of the variable/parallel geometry
stay hinge (with or without a friction system).
6.3 Mounting of specimen
The supporting sub-frame with the specimen to which the samples are fastened during the test, shall be
fixed to the test rig. The mounting of the supporting sub-frame on the test rig shall represent a typical
application and not impair its performance during the durability test.
Instructions for the application of additional stays and other devices in the specimen shall be observed.
6.4 Additional equipment
6.4.1 Block for pull-in abuse test
The pull-in abuse test requires a softwood block of dimensions (25 × 25 × 6) mm ± 10 % (see
Figure B.3).
6.4.2 Steel cross for simulated negative pressure test
The simulated negative pressure test requires a welded steel cross to be used to distribute the applied
force to the mid-points of the panel rails and stiles.
7 Test procedures
7.1 Samples
Four (hardware) sample sets shall be used for testing in accordance with this European Standard:
sample A – pull-in, friction and pull-in abuse tests;
sample B – pull-in, durability, simulated negative pressure tests and parallelism test;
sample C – corrosion tests (representative hardware components);
sample D – retained for reference control.
Sample C should only be necessary if no test report can be supplied from the manufacturer regarding
the testing of the hardware components in accordance with EN 1670.
Sample C should only be retained by the test institute. Alternatively, the test institute should substitute
sample C by a comprehensive documentation (description, photos etc.) of all tested components.
NOTE Refer to Annex C for flow charts of test procedures for variable/parallel geometry stay hinges.
7.2 General
The specimen shall be installed in accordance with 6.3.
Test room ambient temperature: from 15 °C to 30 °C.
If the hardware-manufacturer specifies additional requirements, which should be approved in the test
report, the necessary tests should be performed and noted in the test report.
Sample B shall be used for the complete durability test and the subsequent additional tests.
For hardware available for both left- and right-handed operation, only one of these versions shall be
tested.
The grade for the number of cycles for the durability test shall be in accordance with 5.3, specified by
the manufacturer. All rest times shall be at least 1 s but shall not exceed 4 s (in accordance with the
manufacturer instr
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