Ladders - Part 4: Single or multiple hinge-joint ladders

This document specifies the requirements, tests and marking of hinged combination ladders with one or several hinge joints.
This document is not applicable to hinge-joints of combination and standing ladders as defined by EN 131-1.
This part of the standard is intended to be used in conjunction with EN 131-1, EN 131-2 and EN 131-3.

Leitern - Teil 4: Ein- oder Mehrgelenkleitern

Dieses Dokument legt die Anforderungen, Prüfungen und die Kennzeichnung von Mehrzweckleitern mit einer oder mehreren Gelenkverbindungen fest.
Dieses Dokument gilt nicht für Gelenkverbindungen von Mehrzweck  und Stehleitern nach EN 131 1.
Dieser Teil der Norm gilt in Zusammenhang mit EN 131 1, EN 131 2 und EN 131 3.

Échelles - Partie 4 : Échelles articulées à articulations simple et multiple

Le présent document spécifie les exigences, les essais et le marquage des échelles transformables articulées dotées d’une ou de plusieurs articulations.
Le présent document ne s’applique pas aux articulations des échelles transformables et doubles définies dans l’EN 131-1.
La présente partie de cette norme s’applique conjointement avec l’EN 131-1, l’EN 131-2 et l’EN 131-3.

Lestve - 4. del: Lestve z enim ali več pregibi

General Information

Status
Published
Publication Date
10-Mar-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
11-Mar-2020
Completion Date
11-Mar-2020

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SLOVENSKI STANDARD
SIST EN 131-4:2020
01-junij-2020
Nadomešča:
SIST EN 131-4:2007
Lestve - 4. del: Lestve z enim ali več pregibi
Ladders - Part 4: Single or multiple hinge-joint ladders
Leitern - Teil 4: Ein- oder Mehrgelenkleitern
Echelles - Partie 4 : Echelles articulées à articulations simple et multiple
Ta slovenski standard je istoveten z: EN 131-4:2020
ICS:
97.145 Lestve Ladders
SIST EN 131-4:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 131-4:2020
---------------------- Page: 2 ----------------------
SIST EN 131-4:2020
EN 131-4
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 97.145 Supersedes EN 131-4:2007
English Version
Ladders - Part 4: Single or multiple hinge-joint ladders

Échelles - Partie 4 : Échelles articulées à articulations Leitern - Teil 4: Ein- oder Mehrgelenkleitern

simple et multiple
This European Standard was approved by CEN on 22 December 2019.

This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 18 March 2020.

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, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 131-4:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Content Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Functional dimensions .................................................................................................................................. 7

4.1 General ................................................................................................................................................................ 7

4.2 Hinged ladders in “platform position” .................................................................................................... 7

4.3 Hinged ladders in “stand-off” position .................................................................................................... 8

5 Requirements ................................................................................................................................................... 8

5.1 General ................................................................................................................................................................ 8

5.2 Decking component ........................................................................................................................................ 8

5.3 Ladder hinged in the longitudinal direction ......................................................................................... 8

6 Test methods .................................................................................................................................................... 9

6.1 General ................................................................................................................................................................ 9

6.2 Tests method for hinge ladders ................................................................................................................. 9

6.2.1 Principle ............................................................................................................................................................. 9

6.2.2 Strength test for ladders with hinges in longitudinal direction ..................................................... 9

6.2.3 Additional strength test for ladders with more than one pair of hinges in

longitudinal direction ................................................................................................................................. 10

6.2.4 Cyclic test of hinge joint ............................................................................................................................. 11

6.2.5 Test of the ladder in the platform position ......................................................................................... 11

6.2.6 Cyclic test of hinge joints for lateral hinge ladders .......................................................................... 14

6.2.7 Capacity to pass from storage positions to working position in lateral direction ............... 14

7 Marking ............................................................................................................................................................ 15

8 User instructions .......................................................................................................................................... 15

Annex A (normative) Test sequence .................................................................................................................. 16

Annex B (informative) A-deviations ................................................................................................................... 18

Bibliography ................................................................................................................................................................. 19

---------------------- Page: 4 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
European foreword

This document (EN 131-4:2020) has been prepared by Technical Committee CEN/TC 93 “Ladders”, the

secretariat of which is held by DIN.

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 September 2020, and conflicting national standards

shall be withdrawn at the latest by September 2020.

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 131-4:2007.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of Directive 2001/95/EC.

Compared to EN 131-4:2007 the following modifications have been made:
a) strength test of the ladder in position of use;
b) classes “non-professional” and “professional” introduced;
c) strength test and sliding test of decking component modified.

This document is one of a series about ladders. Other standards of this series are listed in Clause 2 and

in the Bibliography.

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, Turkey and the

United Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
1 Scope

This document specifies the requirements, tests and marking of hinged combination ladders with one

or several hinge joints.

This document is not applicable to hinge-joints of combination and standing ladders as defined by

EN 131-1.

This part of the standard is intended to be used in conjunction with EN 131-1, EN 131-2 and EN 131-3.

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 131-1:2015+A1:2019, Ladders — Part 1: Terms, types, functional sizes
EN 131-2:2010+A2:2017, Ladders — Part 2: Requirements, testing, marking
EN 131-3, Ladders — Part 3: Marking and user instructions
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 131-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at http://www.electropedia.org/
3.1
ladder hinged in the longitudinal direction

ladder with hinge-joints which enable folding (manual or automatic) in the longitudinal direction

Note 1 to entry: Excluding ladders covered in EN 131-1.
3.1.1
ladder with one lockable hinge joint device

ladder including a hinge-joint device with at least one predetermined lockable position with or without

extendable parts
Note 1 to entry: See Figures 1, 2, 3 and 4.
Figure 1 — Position as leaning ladder
---------------------- Page: 6 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Figure 2 — Position as leaning ladder with extendable legs
Figure 3 — Position as standing ladder
Figure 4 — Position as standing ladder with extendable legs
3.1.2
ladder with several lockable hinge-joint devices

ladder having several hinge-joint devices with at least one fixed position which can be locked by hinge

joint devices at predetermined angles
Note 1 to entry: See Figures 5 to 8.
Figure 5 — Position as leaning ladder
Figure 6 — Position as standing ladder
---------------------- Page: 7 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Figure 7 — Position as Stand–off ladder
Figure 8 — Position as Platform
3.2
ladder hinged in the lateral direction
ladder having several hinge-joints enabling it to be folded laterally

Note 1 to entry: The hinge-joints can be located between the legs and the steps. The steps themselves can be

equipped with hinge-joints.
Note 2 to entry: See Figure 9.
Figure 9 — Ladder hinged in the lateral direction
3.3
decking component

single or multiple element forming a standing surface enabling the use of a multiple hinge-joint ladder

in the “platform” position
3.3.1
reference level
upper surface of the decking component, including the anti-skid surface
3.3.2
decking component height
height above ground of the reference level
3.3.3
overhang
length of the decking component after the last support point
---------------------- Page: 8 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
4 Functional dimensions
4.1 General
Dimensions are given in EN 131-1.

If these ladders can be used as leaning ladders, then functional dimensions for leaning ladders shall

apply.

If these ladders can be used as standing ladders the functional dimensions for two-piece combination

ladders shall apply.
The inner width b shall be measured as shown in Figure 10.
Figure 10 — Dimension b
4.2 Hinged ladders in “platform position”
Table 1 — Functional dimensions
h l a b
3 10 α α
mm mm
min. – – 65° 65°
max. 1 000 50 75° 70°
For rung ladders.
For step ladders.

If the decking component fits within the stiles the gap shall be no more than 5 mm (see Figure 11). If the

decking component fits across the stiles, the overhang shall be no more than 25 mm on each side. The

platform shall be centred at ± 10 mm in relation to the longitudinal axis of the ladder. Where decking

components consist of multiple elements, they shall be assembled such that a person cannot fall

through them.
---------------------- Page: 9 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Dimensions in millimetres
Figure 11 — Hinge-joint ladder in “Platform” position
4.3 Hinged ladders in “stand-off” position
Table 2 — Functional dimensions
α
min. – 65°
max. 1 200 mm 75°
Figure 12 — Hinged ladder in “stand-off” position
5 Requirements
5.1 General
The requirements are based upon a maximum total load of 150 kg.
Hinge-joint ladders are determined to be used by one person at a time.
5.2 Decking component

If the multiple hinge ladder can be used in a platform position, the decking component shall be

delivered with the product. The decking component shall be secured against unintentional movement

and shall have a durable slip resistant working surface. It shall be designed so as to be unable to slip and

tilt on the ladder.
5.3 Ladder hinged in the longitudinal direction

All hinges should be locked in the position of use except for the centre hinge in the standing ladder

position, which may be unlocked. The storage position (folded) is not required to be lockable.

---------------------- Page: 10 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
6 Test methods
6.1 General
General provisions, see EN 131-2.

After each of the tests specified in Annex A, the ladder shall remain functional with no fracture or visible

cracks. The ladders shall sustain the load without ultimate failure. Permanent deformation is permitted.

After the test, fold the ladder completely to its storage/transportation position and open it again

completely. During this movement the locking system shall function without any interference. After the

test, the hinges/locking systems shall remain functional in all positions.
6.2 Tests method for hinge ladders
6.2.1 Principle

All the ladders conforming to Clause 3 shall comply with all tests and the requirements specified in

Annex A.
6.2.2 Strength test for ladders with hinges in longitudinal direction

The test shall be carried out on the complete ladder. The test shall be carried out on the maximum

extended ladder according to the manufacturers’ instruction. Lateral or pole type stabilizers shall not be

deployed in this test if the design permits the ladder to be used with the lateral or pole type stabilizers

removed or temporarily adjusted as permitted by EN 131-1:2015+A1:2019, 4.2.1, General.

Where the ascendable side cannot be determined by the construction of the product the ladder shall be

tested twice. For the second test the ladder shall be rotated 180° about the longitudinal axis. For the test

of the second side a new ladder shall be used.

Erect the ladder in its position of use at the maximum extension. Leaning ladders shall be erected at

(65 ± 0,5)° (measured at vertical height of 1 m
...

SLOVENSKI STANDARD
SIST EN 131-4:2020
01-junij-2020
Nadomešča:
SIST EN 131-4:2007
Lestve - 4. del: Lestve z enim ali več pregibi
Ladders - Part 4: Single or multiple hinge-joint ladders
Leitern - Teil 4: Ein- oder Mehrgelenkleitern
Echelles - Partie 4 : Echelles articulées à articulations simple et multiple
Ta slovenski standard je istoveten z: EN 131-4:2020
ICS:
97.145 Lestve Ladders
SIST EN 131-4:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 131-4:2020
---------------------- Page: 2 ----------------------
SIST EN 131-4:2020
EN 131-4
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 97.145 Supersedes EN 131-4:2007
English Version
Ladders - Part 4: Single or multiple hinge-joint ladders

Échelles - Partie 4 : Échelles articulées à articulations Leitern - Teil 4: Ein- oder Mehrgelenkleitern

simple et multiple
This European Standard was approved by CEN on 22 December 2019.

This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 18 March 2020.

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, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 131-4:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Content Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Functional dimensions .................................................................................................................................. 7

4.1 General ................................................................................................................................................................ 7

4.2 Hinged ladders in “platform position” .................................................................................................... 7

4.3 Hinged ladders in “stand-off” position .................................................................................................... 8

5 Requirements ................................................................................................................................................... 8

5.1 General ................................................................................................................................................................ 8

5.2 Decking component ........................................................................................................................................ 8

5.3 Ladder hinged in the longitudinal direction ......................................................................................... 8

6 Test methods .................................................................................................................................................... 9

6.1 General ................................................................................................................................................................ 9

6.2 Tests method for hinge ladders ................................................................................................................. 9

6.2.1 Principle ............................................................................................................................................................. 9

6.2.2 Strength test for ladders with hinges in longitudinal direction ..................................................... 9

6.2.3 Additional strength test for ladders with more than one pair of hinges in

longitudinal direction ................................................................................................................................. 10

6.2.4 Cyclic test of hinge joint ............................................................................................................................. 11

6.2.5 Test of the ladder in the platform position ......................................................................................... 11

6.2.6 Cyclic test of hinge joints for lateral hinge ladders .......................................................................... 14

6.2.7 Capacity to pass from storage positions to working position in lateral direction ............... 14

7 Marking ............................................................................................................................................................ 15

8 User instructions .......................................................................................................................................... 15

Annex A (normative) Test sequence .................................................................................................................. 16

Annex B (informative) A-deviations ................................................................................................................... 18

Bibliography ................................................................................................................................................................. 19

---------------------- Page: 4 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
European foreword

This document (EN 131-4:2020) has been prepared by Technical Committee CEN/TC 93 “Ladders”, the

secretariat of which is held by DIN.

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 September 2020, and conflicting national standards

shall be withdrawn at the latest by September 2020.

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 131-4:2007.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of Directive 2001/95/EC.

Compared to EN 131-4:2007 the following modifications have been made:
a) strength test of the ladder in position of use;
b) classes “non-professional” and “professional” introduced;
c) strength test and sliding test of decking component modified.

This document is one of a series about ladders. Other standards of this series are listed in Clause 2 and

in the Bibliography.

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, Turkey and the

United Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
1 Scope

This document specifies the requirements, tests and marking of hinged combination ladders with one

or several hinge joints.

This document is not applicable to hinge-joints of combination and standing ladders as defined by

EN 131-1.

This part of the standard is intended to be used in conjunction with EN 131-1, EN 131-2 and EN 131-3.

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 131-1:2015+A1:2019, Ladders — Part 1: Terms, types, functional sizes
EN 131-2:2010+A2:2017, Ladders — Part 2: Requirements, testing, marking
EN 131-3, Ladders — Part 3: Marking and user instructions
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 131-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at http://www.electropedia.org/
3.1
ladder hinged in the longitudinal direction

ladder with hinge-joints which enable folding (manual or automatic) in the longitudinal direction

Note 1 to entry: Excluding ladders covered in EN 131-1.
3.1.1
ladder with one lockable hinge joint device

ladder including a hinge-joint device with at least one predetermined lockable position with or without

extendable parts
Note 1 to entry: See Figures 1, 2, 3 and 4.
Figure 1 — Position as leaning ladder
---------------------- Page: 6 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Figure 2 — Position as leaning ladder with extendable legs
Figure 3 — Position as standing ladder
Figure 4 — Position as standing ladder with extendable legs
3.1.2
ladder with several lockable hinge-joint devices

ladder having several hinge-joint devices with at least one fixed position which can be locked by hinge

joint devices at predetermined angles
Note 1 to entry: See Figures 5 to 8.
Figure 5 — Position as leaning ladder
Figure 6 — Position as standing ladder
---------------------- Page: 7 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Figure 7 — Position as Stand–off ladder
Figure 8 — Position as Platform
3.2
ladder hinged in the lateral direction
ladder having several hinge-joints enabling it to be folded laterally

Note 1 to entry: The hinge-joints can be located between the legs and the steps. The steps themselves can be

equipped with hinge-joints.
Note 2 to entry: See Figure 9.
Figure 9 — Ladder hinged in the lateral direction
3.3
decking component

single or multiple element forming a standing surface enabling the use of a multiple hinge-joint ladder

in the “platform” position
3.3.1
reference level
upper surface of the decking component, including the anti-skid surface
3.3.2
decking component height
height above ground of the reference level
3.3.3
overhang
length of the decking component after the last support point
---------------------- Page: 8 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
4 Functional dimensions
4.1 General
Dimensions are given in EN 131-1.

If these ladders can be used as leaning ladders, then functional dimensions for leaning ladders shall

apply.

If these ladders can be used as standing ladders the functional dimensions for two-piece combination

ladders shall apply.
The inner width b shall be measured as shown in Figure 10.
Figure 10 — Dimension b
4.2 Hinged ladders in “platform position”
Table 1 — Functional dimensions
h l a b
3 10 α α
mm mm
min. – – 65° 65°
max. 1 000 50 75° 70°
For rung ladders.
For step ladders.

If the decking component fits within the stiles the gap shall be no more than 5 mm (see Figure 11). If the

decking component fits across the stiles, the overhang shall be no more than 25 mm on each side. The

platform shall be centred at ± 10 mm in relation to the longitudinal axis of the ladder. Where decking

components consist of multiple elements, they shall be assembled such that a person cannot fall

through them.
---------------------- Page: 9 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
Dimensions in millimetres
Figure 11 — Hinge-joint ladder in “Platform” position
4.3 Hinged ladders in “stand-off” position
Table 2 — Functional dimensions
α
min. – 65°
max. 1 200 mm 75°
Figure 12 — Hinged ladder in “stand-off” position
5 Requirements
5.1 General
The requirements are based upon a maximum total load of 150 kg.
Hinge-joint ladders are determined to be used by one person at a time.
5.2 Decking component

If the multiple hinge ladder can be used in a platform position, the decking component shall be

delivered with the product. The decking component shall be secured against unintentional movement

and shall have a durable slip resistant working surface. It shall be designed so as to be unable to slip and

tilt on the ladder.
5.3 Ladder hinged in the longitudinal direction

All hinges should be locked in the position of use except for the centre hinge in the standing ladder

position, which may be unlocked. The storage position (folded) is not required to be lockable.

---------------------- Page: 10 ----------------------
SIST EN 131-4:2020
EN 131-4:2020 (E)
6 Test methods
6.1 General
General provisions, see EN 131-2.

After each of the tests specified in Annex A, the ladder shall remain functional with no fracture or visible

cracks. The ladders shall sustain the load without ultimate failure. Permanent deformation is permitted.

After the test, fold the ladder completely to its storage/transportation position and open it again

completely. During this movement the locking system shall function without any interference. After the

test, the hinges/locking systems shall remain functional in all positions.
6.2 Tests method for hinge ladders
6.2.1 Principle

All the ladders conforming to Clause 3 shall comply with all tests and the requirements specified in

Annex A.
6.2.2 Strength test for ladders with hinges in longitudinal direction

The test shall be carried out on the complete ladder. The test shall be carried out on the maximum

extended ladder according to the manufacturers’ instruction. Lateral or pole type stabilizers shall not be

deployed in this test if the design permits the ladder to be used with the lateral or pole type stabilizers

removed or temporarily adjusted as permitted by EN 131-1:2015+A1:2019, 4.2.1, General.

Where the ascendable side cannot be determined by the construction of the product the ladder shall be

tested twice. For the second test the ladder shall be rotated 180° about the longitudinal axis. For the test

of the second side a new ladder shall be used.

Erect the ladder in its position of use at the maximum extension. Leaning ladders shall be erected at

(65 ± 0,5)° (measured at vertical height of 1 m
...

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