SIST EN ISO 14122-3:2016
(Main)Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2016)
Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2016)
This part of ISO 14122 gives requirements for non-powered stairs, stepladders and guard-rails which
are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and
movable parts of those fixed means of access.
NOTE 1 “Fixed” means of access are those mounted in such a manner (for example, by screws, nuts, welding)
that they can only be removed by the use of tools.
This part of ISO 14122 specifies minimum requirements that also apply when the same means of access
is required as the part of the building or civil construction (e.g. stairs, stepladders, guard-rails) where
the machine is installed, on condition that the main function of that part of the construction is to
provide a means of access to the machine.
NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of
access which are outside the scope of the standard.
It is intended that this part of ISO 14122 be used with ISO 14122-1 to give the requirements for steps,
stepladders and guard-rails.
The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed
means of access are necessary. It is not applicable to powered means of access such as lifts, escalators,
or other devices specially designed to lift persons between two levels.
This part of ISO 14122 is not applicable to machinery manufactured before the date of its publication.
Sicherheit von Maschinen - Ortsfeste Zugänge zu maschinellen Anlagen - Teil 3: Treppen, Treppenleitern und Geländer (ISO 14122-3:2016)
Sécurité des machines - Moyens d'accès permanents aux machines - Partie 3: Escaliers, échelles à marches et garde-corps (ISO 14122-3:2016)
ISO 14122-3:2016 donne les exigences pour les escaliers, échelles à marches et garde-corps non-motorisés qui font partie intégrante d'une machine fixe et aux parties réglables non-motorisées (par exemple pliables, coulissantes) ainsi qu'aux parties mobiles de ces moyens d'accès fixes.
NOTE 1 Les moyens d'accès «fixes» sont ceux montés de telle manière (par exemple par boulonnage, par soudage) qu'ils ne puissent être ouverts ou démontés qu'à l'aide d'outils.
ISO 14122-3:2016 spécifie les exigences minimales s'appliquant également aux moyens d'accès aux parties du bâtiment ou de la construction civile (par exemple escaliers, échelles à marches et garde-corps) où la machine est installée, à condition que la fonction principale de cette partie de la construction soit de donner accès à la machine.
NOTE 2 Lorsqu'aucune norme nationale ou réglementation n'existe, la présente partie de l'ISO 14122 peut être utilisée pour les moyens d'accès en dehors de son domaine d'application.
ISO 14122-3:2016 a pour but d'être utilisée avec l'ISO 14122‑1 afin de donner les exigences pour les escaliers, échelles à marches et garde-corps.
L'ensemble de la série ISO 14122 est applicable aux machines fixes et mobiles pour lesquelles des moyens d'accès fixes sont nécessaires. Cette série n'est pas applicable aux moyens d'accès motorisés tels que les ascenseurs, les escalators, ou d'autres dispositifs conçus spécialement pour soulever des personnes entre deux niveaux.
ISO 14122-3:2016 n'est pas applicable aux machines fabriquées avant sa date de publication.
Varnost strojev - Stalni dostopi do strojev - 3. del: Stopnice, stopničaste lestve in varovalne ograje (ISO 14122-3:2016)
Ta del standarda ISO 14122 določa zahteve za stopnice, stopničaste lestve in varovalne ograje brez pogona, ki so del stacionarnega stroja, in za prilagodljive dele brez pogona (npr. zložljive, drsne) ter premične dele teh fiksnih načinov dostopa.
OPOMBA 1: »Fiksni« načini dostopa so tisti, ki so nameščeni na tak način (na primer z vijaki, maticami, privarjeni), da jih je mogoče odstraniti samo z orodjem.
Ta del standarda ISO 14122 določa minimalne zahteve, ki veljajo tudi, kadar je enak način dostopa zahtevan kot del objekta ali nizke gradnje (npr. stopnice, stopničaste lestve in varovalne ograje), če je stroj vgrajen, pod pogojem, da je glavna funkcija tega dela konstrukcije zagotoviti način dostopa do stroja.
OPOMBA 2: Če ni lokalnih predpisov ali standardov, se lahko ta del standarda ISO 14122 uporabi tudi za načine dostopa, ki so zunaj področja uporabe tega standarda.
Ta del standarda ISO 14122 je namenjen za uporabo s standardom ISO 14122-1 za določanje zahtev za stopnice, stopničaste lestve in varovalne ograje.
Skupina standardov ISO 14122 se kot celota uporablja za stacionarne in mobilne stroje, kjer je potreben
fiksni način dostopa. Ne uporablja se za načine dostopa s pogonom, kot so dvigala, tekoče stopnice ali druge naprave, posebej zasnovane za dviganje oseb med dvema ravnema.
Ta del standarda ISO 14122 se ne uporablja za stroje, izdelane pred datumom njegove objave.
General Information
Relations
Related Packages
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 14122-3:2016
01-november-2016
1DGRPHãþD
SIST EN ISO 14122-3:2002
SIST EN ISO 14122-3:2002/A1:2010
9DUQRVWVWURMHY6WDOQLGRVWRSLGRVWURMHYGHO 6WRSQLFHVWRSQLþDVWHOHVWYHLQ
YDURYDOQHRJUDMH ,62
Safety of machinery - Permanent means of access to machinery - Part 3: Stairs,
stepladders and guard-rails (ISO 14122-3:2016)
Sicherheit von Maschinen - Ortsfeste Zugänge zu maschinellen Anlagen - Teil 3:
Treppen, Treppenleitern und Geländer (ISO 14122-3:2016)
Sécurité des machines - Moyens d'accès permanents aux machines - Partie 3: Escaliers,
échelles à marches et garde-corps (ISO 14122-3:2016)
Ta slovenski standard je istoveten z: EN ISO 14122-3:2016
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
13.110 Varnost strojev Safety of machinery
SIST EN ISO 14122-3:2016 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 14122-3:2016
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SIST EN ISO 14122-3:2016
EN ISO 14122-3
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 13.110 Supersedes EN ISO 14122-3:2001
English Version
Safety of machinery - Permanent means of access to
machinery - Part 3: Stairs, stepladders and guard-rails (ISO
14122-3:2016)
Sécurité des machines - Moyens d'accès permanents Sicherheit von Maschinen - Ortsfeste Zugänge zu
aux machines - Partie 3: Escaliers, échelles à marches maschinellen Anlagen - Teil 3: Treppen, Treppenleitern
et garde-corps (ISO 14122-3:2016) und Geländer (ISO 14122-3:2016)
This European Standard was approved by CEN on 29 April 2016.
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, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14122-3:2016 E
worldwide for CEN national Members.
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SIST EN ISO 14122-3:2016
EN ISO 14122-3:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC machinery, and amending
Directive 95/16/EC (recast) [2006 L157] aimed to be covered. 4
2
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SIST EN ISO 14122-3:2016
EN ISO 14122-3:2016 (E)
European foreword
This document (EN ISO 14122-3:2016) has been prepared by Technical Committee ISO/TC 199 “Safety
of machinery” in collaboration with Technical Committee CEN/TC 114 “Safety of machinery” 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 December 2016, and conflicting national standards
shall be withdrawn at the latest by December 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 14122-3:2001.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 14122-3:2016 has been approved by CEN as EN ISO 14122-3:2016 without any
modification.
3
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SIST EN ISO 14122-3:2016
EN ISO 14122-3:2016 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC machinery, and amending
Directive 95/16/EC (recast) [2006 L157] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/396 to
provide one voluntary means of conforming to essential requirements of Directive 2006/42/EC of the
European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive
95/16/EC (recast) [2006 L157].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and
Directive 2006/42/EC [2006 L157]
Essential Requirements of Clause(s) / subclause(s)
Remarks / Notes
Directive 2006/42/EC of this EN
1.5.15 “Risks of slipping, tripping All
or falling”
1.6.2 “Access to operating All
position and service points”
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IMPORTANT: Compliance with the requirements of EN ISO 14122-1 and a relevant access-specific
part of EN ISO 14122 is necessary to achieve presumption of conformity.
4
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SIST EN ISO 14122-3:2016
INTERNATIONAL ISO
STANDARD 14122-3
Second edition
2016-06-01
Safety of machinery — Permanent
means of access to machinery —
Part 3:
Stairs, stepladders and guard-rails
Sécurité des machines — Moyens d’accès permanents aux
machines —
Partie 3: Escaliers, échelles à marches et garde-corps
Reference number
ISO 14122-3:2016(E)
©
ISO 2016
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 6
4.1 Construction and materials . 6
4.2 Design and construction for the structure and the steps . 6
5 Specific requirements applicable to stairs . 6
6 Specific requirements applicable to step ladders . 7
7 Specific requirements applicable to guard-rails . 9
7.1 Guard-rails for platforms, walkways and stair landings . 9
7.2 Guard-rails and handrails for stairs and handrails for step ladders .11
7.3 Additional fall-protection when steps, stairs or ladders are near guard-rails of
working platforms .13
7.4 Gates .13
8 Verification of safety requirements .14
8.1 General .14
8.2 Testing of guard-rails .14
8.2.2 Testing procedure .16
8.3 Testing of steps of a stair .17
8.4 Testing of stepladders .19
Annex A (informative) Significant technical changes between this part of ISO 14122 and the
previous edition .20
Bibliography .22
© ISO 2016 – All rights reserved iii
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 199, Safety of machinery.
This second edition cancels and replaces the first edition (ISO 14122-3:2001) which has been technically
revised. It also incorporates the Amendment ISO 14122-3:2001/Amd 1:2010.
ISO 14122 consists of the following parts, under the general title Safety of machinery — Permanent
means of access to machinery:
— Part 1: Choice of fixed means and general requirements of access
— Part 2: Working platforms and walkways
— Part 3: Stairs, stepladders and guard-rails
— Part 4: Fixed ladders
An additional part, dealing with mobile machinery, is under preparation.
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
Introduction
This International Standard is a type-B standard as stated in ISO 12100. It is relevant, in particular, for
the following stakeholder groups representing the market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of this International
Standard by the above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for peoples with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this International Standard.
In addition, this International Standard is intended for standardization bodies elaborating type-C
standards. The requirements of this International Standard can be supplemented or modified by a
type-C standard.
For machines which are covered by the scope of a type-C standard and which have been designed and
built according to the requirements of that standard, the requirements of that type-C standard take
precedence.
The purpose of this International Standard is to define the general requirements for safe access to
machines. ISO 14122-1 gives guidance about the correct choice of access means when the necessary
access to the machine is not possible directly from the ground level or from a floor or platform.
The dimensions specified are consistent with established ergonomic data given in ISO 15534-3.
© ISO 2016 – All rights reserved v
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SIST EN ISO 14122-3:2016
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SIST EN ISO 14122-3:2016
INTERNATIONAL STANDARD ISO 14122-3:2016(E)
Safety of machinery — Permanent means of access to
machinery —
Part 3:
Stairs, stepladders and guard-rails
1 Scope
This part of ISO 14122 gives requirements for non-powered stairs, stepladders and guard-rails which
are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and
movable parts of those fixed means of access.
NOTE 1 “Fixed” means of access are those mounted in such a manner (for example, by screws, nuts, welding)
that they can only be removed by the use of tools.
This part of ISO 14122 specifies minimum requirements that also apply when the same means of access
is required as the part of the building or civil construction (e.g. stairs, stepladders, guard-rails) where
the machine is installed, on condition that the main function of that part of the construction is to
provide a means of access to the machine.
NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of
access which are outside the scope of the standard.
It is intended that this part of ISO 14122 be used with ISO 14122-1 to give the requirements for steps,
stepladders and guard-rails.
The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed
means of access are necessary. It is not applicable to powered means of access such as lifts, escalators,
or other devices specially designed to lift persons between two levels.
This part of ISO 14122 is not applicable to machinery manufactured before the date of its publication.
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.
ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 14122-1:2016, Safety of machinery — Permanent means of access to machinery — Part 1: Choice of
fixed means and general requirements of access
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100, ISO 14122-1 and the
following apply.
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
3.1
stairs
step ladders
succession of horizontal levels — steps (3.1.11) and landings (3.1.5) — allowing passage on foot from
one level to another
Note 1 to entry: Stairs/step ladders are composed of the elements shown in Figure 1 and defined in 3.1.1 to 3.1.16.
Note 2 to entry: For details on the angle of pitch (3.1.9) for stairs/step ladders, see ISO 14122-1:2016, 3.2 and 3.3.
Key
H climbing height α angle of pitch
g going w width
e head-height p pitch line
h rise t depth of step
r overlap c clearance
Figure 1 — Parts of stairs
3.1.1
climbing height
vertical distance between the reference level and the landing (3.1.5)
Note 1 to entry: See H in Figure 1.
3.1.2
flight
uninterrupted sequence of steps (3.1.11) between two landings (3.1.5)
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
3.1.3
going
horizontal distance between the step nosing (3.1.12) of two consecutive steps
Note 1 to entry: See g in Figure 1.
3.1.4
head-height
minimum vertical distance, clear of all obstacles (such as beams, ducts, etc.) above the pitch line (3.1.8)
Note 1 to entry: See e in Figure 1.
3.1.5
landing
horizontal resting area situated at the end of a flight (3.1.2)
3.1.6
walking line
theoretical line indicating the average path of the users
3.1.7
overlap
difference between the depth of the step and the going (3.1.3)
Note 1 to entry: See r in Figure 1.
3.1.8
pitch line
notional line connecting the leading edge of the nosing (3.1.12) of successive steps (3.1.11) taken on the
walking line (3.1.6) and which extends down to the landing at the bottom of the flight (3.1.2) from the
nosing on the landing at the top of the flight
Note 1 to entry: See p in Figure 1.
3.1.9
angle of pitch
angle between the pitch line (3.1.8) and its projection on the horizontal level
Note 1 to entry: See α in Figure 1.
3.1.10
rise
height between two consecutive steps (3.1.11) measured from the tread surface of one to the tread
surface of the next
Note 1 to entry: See h in Figure 1.
3.1.11
step
horizontal surface on which one places the foot to go up or down the stair/step ladder (3.1)
3.1.12
nosing
top edge at the front of the step (3.1.11) or landing (3.1.5)
3.1.13
string
flanking framework element supporting the steps (3.1.11)
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
3.1.14
width
clear distance over the outside faces of the step (3.1.11)
Note 1 to entry: See w in Figure 1.
3.1.15
depth of step
clear distance from the leading edge or the nosing (3.1.12) to the rear of the step (3.1.11)
Note 1 to entry: See t in Figure 1.
3.1.16
clearance
absolute minimum clear distance between any obstacle and the pitch line (3.1.8), measured at an angle
of 90° from the pitch line
Note 1 to entry: See c in Figure 1.
3.2
guard-rail
device for protection against accidental fall sideways with which stairs/step ladders (3.1) or landings
(3.1.5), platforms and walkways may be equipped
Note 1 to entry: Typical parts of a guard-rail are shown in Figure 2 and defined in 3.2.1 to 3.2.5.
a) Guard-rail with knee rail b) Guard-rail with vertical uprights
Key
1 handrail 4 stanchion
2 knee rail 5 walking level
3 toe-plate 6 vertical uprights
Figure 2 — Examples of the parts of a typical structure of a guard-rail
3.2.1
handrail
rigid top element designed to be grasped by the hand for body support which can be used individually
or as the upper part of a guard-rail (3.2)
Note 1 to entry: See 1 in Figure 2.
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
3.2.2
knee rail
rigid element of the guard-rail (3.2) placed parallel with the handrail (3.2.1), giving extra protection
against the passage of a body
Note 1 to entry: See 2 in Figure 2.
3.2.3
stanchion
vertical structural element of the guard-rail (3.2) to anchor the guard-rail to the platform or stair (3.1)
Note 1 to entry: See 4 in Figure 2.
3.2.4
toe-plate
rigid lower part of a guard-rail (3.2) to prevent the falling of objects from floor level
Note 1 to entry: See 3 in Figure 2.
Note 2 to entry: A toe-plate also reduces the free space between the floor and knee rail (3.2.2) to prevent the
passage of a body.
3.2.5
self-closing gate
pivoting part of the guard-rail (3.2) which enables access through the guard-rail
Note 1 to entry: See Figure 10.
Note 2 to entry: The rest position is closed.
3.2.6
mezzanine gate
gate designed for loading and unloading goods to and from mezzanine floor providing a permanent
collective fall protection
Note 1 to entry: See Figure 3.
a) Pivot gate b) Vertical gate
Figure 3 — Examples of principle function of mezzanine gates
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
3.2.7
transfer zone
area defined by the loading zone and the space needed for the movement of the mezzanine gate (3.2.6)
4 General requirements
4.1 Construction and materials
Stairs, step ladders and guard-rails — including fittings, hinges, anchorage points, supports and
mountings — shall be designed and constructed and the materials selected so that they withstand
the foreseeable conditions of use (see ISO 14122-1:2016, Clause 5). In particular, at least the following
details shall be taken into account:
a) dimensions of stairs, stepladders and guard-rails shall be in accordance with available
anthropomorphic data (see also ISO 15534-1 and ISO 15534-3);
b) guard-rails shall be designed and constructed to prevent objects falling;
b) for hazards generated by falling objects through openings on steps, see ISO 14122-2:2016, 4.2.4.5.1.
Opening or closing of moving parts (gates), of adjustable parts (e.g. foldable, slidable) and of movable
parts shall not cause further hazards (for example by shearing or by falling) to users and other persons
in the vicinity.
4.2 Design and construction for the structure and the steps
4.2.1 The structure and the steps shall be designed to satisfactorily resist the foreseeable imposed loads.
The unfactored loads applicable used for the structure of the stair or stepladder in the industrial
field can vary. For each application the expected unfactored loads shall be defined. As a minimum the
following assumptions for unfactored loads shall be applied in calculations to be considered, but higher
values can be necessary. Higher values shall be applied when higher loading is foreseeable:
2
— for low density pedestrian traffic without load, 1,5 kN/m ;
2
— for low density pedestrian traffic with load or for high density pedestrian traffic, 5 kN/m ;
4.2.2 Steps shall resist the following minimum unfactored loadings:
— if the clear width w < 1 200 mm then 1,5 kN shall be distributed over an area of 100 mm × 100 mm,
where one boundary is the leading edge of the nosing applied at the middle of the stair width;
— if the clear width w ≥ 1 200 mm then respectively two loads of each 1,5 kN shall be distributed
simultaneously over each of the 100 mm × 100 mm, areas applied at the most unfavourable points
spaced at intervals of 600 mm where one boundary is the leading edge of the nosing.
The deflection between the structure supporting the steps and the steps under an unfactored load shall
th
not exceed 1/300 of the span of the step or 6 mm, whichever is the lower.
5 Specific requirements applicable to stairs
5.1 Going, g, and rise, h, shall meet Formula (1):
600 ≤ g + 2h ≤ 660 (dimensions in millimetres) (1)
5.2 The going (distance t minus r, see Figure 4) shall be between 210 mm and 310 mm.
6 © ISO 2016 – All rights reserved
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SIST EN ISO 14122-3:2016
ISO 14122-3:2016(E)
5.3 The overlap, r, of the step shall be ≥10 mm and shall apply equally to landings and floors.
5.4 On the same flight, h shall be constant. Where it is not possible, the rise of the first step in the flight,
h , may be reduced by maximum of 15 %.
1
5.5 The uppermost step shall be level with the landing (see Figure 4).
Figure 4 — Positioning of the uppermost step
5.6 Head-height, e, shall be 2 300 mm minimum (see Figure 1).
5.7 Clearance, c, shall be 1 900 mm minimum (see Figure 1).
5.8 The clear width, w, of a stair shall be a minimum of 800 mm. When the stairway is usually subject
to the passage or crossing of several persons simultaneously, the clear width shall be increased to
1 000 mm. The clear width of the stair, when designated as an escape way, shall meet the requirements of
appropriate regulation.
For single flights with heights less than 1 500 mm, the clear width, w, may be reduced from 600 mm
to 500 mm.
Due to the design of the machine, the environment or occasional use, e.g. less than 30 days/year and
less than two hours/day, the clear width, w, may be reduced from 800 mm to 600 mm. If the available
space at the floor level is restricted due to pipework, electric, or constructive reason of machinery, the
stair width at floor level may be reduced to 500 mm minimum, and for a maximum height of 200 mm
(see ISO 14122-2:2016, Figure 1).
Any obstruction such as p
...
SLOVENSKI STANDARD
oSIST prEN ISO 14122-3:2014
01-februar-2014
9DUQRVWVWURMHY6WDOQLGRVWRSLGRVWURMHYGHO 6WRSQLFHVWRSQLþDVWHOHVWYHLQ
YDURYDOQHRJUDMH ,62',6
Safety of machinery - Permanent means of access to machinery - Part 3: Stairs,
stepladders and guard-rails (ISO/DIS 14122-3:2013)
Sicherheit von Maschinen - Ortsfeste Zugänge zu maschinellen Anlagen - Teil 3:
Treppen, Treppenleitern und Geländer (ISO/DIS 14122-3:2013)
Sécurité des machines - Moyens d'accès permanents aux machines - Partie 3: Escaliers,
échelles à marches et garde-corps (ISO/DIS 14122-3:2013)
Ta slovenski standard je istoveten z: prEN ISO 14122-3
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
13.110 Varnost strojev Safety of machinery
oSIST prEN ISO 14122-3:2014 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 14122-3:2014
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oSIST prEN ISO 14122-3:2014
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14122-3
ISO/TC 199 Secretariat: DIN
Voting begins on: Voting terminates on:
2013-12-12 2014-05-12
Safety of machinery — Permanent means of access to
machinery —
Part 3:
Stairs, stepladders and guard-rails
Sécurité des machines — Moyens d’accès permanents aux machines —
Partie 3: Escaliers, échelles à marches et garde-corps
[Revision of first edition (ISO 14122-3:2001) and the first edition ISO 14122-3:2001/Amd 1:2010]
ICS: 13.110
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization
(CEN), and processed under the CEN lead mode of collaboration as defined in the
Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 14122-3:2013(E)
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. ISO 2013
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3:2013(E)
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as
permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract
from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means,
electronic, photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2013 – All rights reserved
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General safety requirements concerning materials, dimensions and design . 5
5 Safety requirements applicable to stairs . 6
6 Safety requirements applicable to step ladders . 8
7 Safety requirements applicable to guard-rails . 8
7.1 Guard-rails for platforms and walkways . 8
7.2 Guard–and handrails for stairs and stepladders . 11
7.2.1 Guard-and handrails for stairs . 11
7.2.2 Handrails for stepladders . 12
7.3 Fall-protection by using additional steps, stairs or ladders on working- platforms . 13
7.4 Mezzanine gate . 13
8 Verification of safety requirements . 14
8.1 General . 14
8.2 Testing of guard-rails . 14
8.2.1 General . 14
8.2.2 Loads . 14
8.2.3 Testing Procedure . 14
9 Assembly instructions . 16
10 Information for use – Instruction handbook . 16
Annex A (informative) Significant technical changes between this Standard and the previous
edition . 17
Annex ZA (informative) Relationship between this European standard and the Essential
Requirements of EU Directive 2006/42/EC . 19
Bibliography . 20
© ISO 2013 – All rights reserved iii
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 14122-3 was prepared by Technical Committee ISO/TC 199, Safety of machinery.
This second edition cancels and replaces the first edition which has been technically revised.
ISO 14122 consists of the following parts, under the general title Safety of machinery — Permanent means of
access to machinery:
Part 1: Choice of fixed means of access
Part 2: Working platforms and walkways
Part 3: Stairs, stepladders and guards-rails
Part 4: Fixed ladders
iv © ISO 2013 – All rights reserved
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
Introduction
This document is a type-B standard as stated in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
machine manufacturers (small, medium and large enterprises);
health and safety bodies (regulators, accident prevention organisations, market surveillance etc.);
Others can be affected by the level of machinery safety achieved with the means of the document by the above-
mentioned stakeholder groups:
machine users/employers (small, medium and large enterprises);
machine users/employees (e. g. trade unions, organizations for peoples with special needs);
service providers, e. g. for maintenance (small, medium and large enterprises);
consumers (in case of machinery intended for use by consumers).
The above mentioned stakeholder groups have been given the possibility to participate at the drafting process
of this document.
In addition this document is intended for standardisation bodies elaborating type-C standards.
The requirements of this document can be supplemented or modified by a type-C standard.
For machines which are covered by the scope of a type-C standard and which have been designed and built
according to the requirements of that standard, the requirements of that type-C standard take precedence.
The purpose of this standard is to define the general requirements for safe access to machines. This part of
ISO 14122 gives advice about the correct choice of access means when the necessary access to the machine
is not possible directly from the ground level or from a floor.
The dimensions specified are consistent with established ergonomic data given in ISO 15534-3.
© ISO 2013 – All rights reserved v
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oSIST prEN ISO 14122-3:2014
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oSIST prEN ISO 14122-3:2014
DRAFT INTERNATIONAL STANDARD ISO/DIS 14122-3
Safety of machinery — Permanent means of access to
machinery — Part 3: Stairs, stepladders and guards-rails
1 Scope
This International Standard applies to stationary machinery where fixed means of access are necessary.
This part of ISO 14122 applies to stairs, step ladders and guard-rails which are a part of a machine.
NOTE 1 If no national standard or regulation is applicable this standard may be used also for means of access which
are outside the scope of this standard.
This International Standard is applicable also to non-powered adjustable parts (e. g. foldable, slidable) and to
the movable parts of fixed means of access.
This International Standard is not applicable to machinery manufactured before the date of its publication.
NOTE 2 For mobile machinery, due to their dimensions and particular conditions of use, specific requirements
deviating from this standard can be applied. Therefore it is intended to develop a standard for mobile machinery excluding
mobile machinery used in rough terrain. For access to mobile machinery used in rough terrain such earth moving
machinery see ISO 2867 and for agriculture machinery see ISO 4254-1.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 12100, Safety of machinery - General principles for design, risk assessment and risk reduction
ISO/DIS 14122-1:2013, Safety of machinery - Permanent means of access to machinery - Part 1: Choice of
fixed means of access between two levels
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100, ISO/DIS 14122-1:2013 and
the following apply.
3.1
stairs and step ladders
Succession of horizontal levels (steps or landings) allowing passage on foot from one level to another
composed of the following elements, shown in Figure 1 and explained from 3.1.1 to 3.1.16.
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
Key
H Climbing height
g Going
e Headroom
h Rise
l Length of landing
r Overlap
Angle of pitch
w Width
p Pitch line
t Depth of step
c Clearance
Figure 1 — Parts of stairs and step ladders
3.1.1
climbing height
vertical distance between the reference level and the landing (H in Figure 1)
3.1.2
flight
uninterrupted sequence of steps between two landings
3.1.3
going
horizontal distance between the step nosing of two consecutive steps (g in Figure 1)
2 © ISO 2013 – All rights reserved
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
3.1.4
headroom
minimum vertical distance, clear of all obstacles (such as beams, ducts, etc.) above the pitch line (e in
Figure 1)
3.1.5
landing
horizontal resting area situated at the end of a flight (l in Figure 1)
3.1.6
walking line
theoretical line indicating the average path of the users.
3.1.7
overlap
difference between the depth of the step and the going (r in Figure 1)
3.1.8
pitch line
a notional line connecting the leading edge of the nosing of successive steps taken on the walking line and
which extends down to the landing at the bottom of the flight from the nosing on the landing at the top of the
flight (p in Figure 1)
3.1.9
angle of pitch of the stair or step ladder
angle between the pitch line and its projection on the horizontal level ( in Figure 1)
3.1.10
rise
height between two consecutive steps measured from the tread surface of one to the tread surface of the next
(h in Figure 1)
3.1.11
step
horizontal surface on which one places the foot to go up or down the stair or step ladder
3.1.12
nosing
top edge at the front of the step or landing
3.1.13
string
flanking framework element supporting the steps
3.1.14
width
clear distance over the outside faces of the step (w in Figure 1)
3.1.15
depth of step
clear distance from the leading edge or the nosing to the rear of the step (t in Figure 1)
3.1.16
clearance
absolute minimum clear distance between any obstacle and the pitch line (c in Figure 1) measured at an angle
of 90° from the pitch line
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
3.2
guard-rail
device for protection against accidental fall with which stairs, step ladders or landings, platforms and walkways
may be equipped. Typical parts of a guard-rail are shown in Figure 2 and defined in 3.2.1 to 3.2.5
b) guard-rail with vertical uprights
a) guard-rail with kneerail
Key
1 Handrail
2 Kneerail
3 Toe plate
4 Stanchion
5 Walking level
Figure 2 — Examples of the parts of a typical structure of a guard-rail
3.2.1
handrail
rigid top element designed to be grasped by the hand for body support which can be used individually or as
the upper part of a guard-rail (1 in Figure 2)
3.2.2
kneerail
rigid element of the guard-rail placed parallel with the handrail, giving extra protection against the passage of
a body (2 in Figure 2)
3.2.3
stanchion
vertical structural element of the guard-rail to anchor the guard-rail to the platform or stair. (4 in Figure 2)
3.2.4
toe-plate
rigid lower part of a guard-rail or upstand on a landing to prevent the fall of objects from a floor level (3 in
Figure 2)
NOTE A toe-plate also reduces the free space between the floor and kneerail to prevent the passage of a body.
3.2.5
selfclosing gate
pivoting part of the guard-rail which enables the access through the guard-rail ( example for selfclosing gate
without toe-plate see Figure 7)
4 © ISO 2013 – All rights reserved
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
3.2.6
mezzanine gate
gate designed for loading and unloading goods from mezzanine floor or an elevated work platform pivoting or
elevating equipment providing a permanent collective fall protection.
a) pivot gate b) vertical gate
Figure 3 — Examples of mezzanine gates
3.2.7
transfer zone
area defined by the loading zone and the space needed for the movement of the gate
4 General safety requirements concerning materials, dimensions and design
4.1 The stairs, stepladders and guard-rails including fittings, hinges, anchorage points, supports and
mountings shall be designed and constructed and the materials selected so that they withstand the
foreseeable conditions of use. In particular, at least the following details shall be considered:
a) dimensioning and selection of components (including fixings, connections, supports and foundations) to
ensure sufficient rigidity and stability;
b) resistance of all parts to environmental effects (such as climate, chemical agents, corrosive gases) e. g.
by the use of a corrosion resistant material or with the aid of a suitable protective coating;
c) positioning of constructional elements so that water cannot be accumulated e. g. in the joints;
d) use of compatible materials e. g. to minimise galvanic action or differential thermal expansion;
e) dimensions of stairs, stepladders and guard-rails shall be in according to available anthropometric data
(see also ISO 15534-1 and ISO 15534-3); guard-rails shall be designed and constructed to prevent the
hazards due to falling objects.
f) for hazards generated by falling objects through openings on steps see ISO/DIS 14122-2:2013, 4.2.4.5.1
4.2 Any parts liable to be in contact with the users shall be designed so as not to hurt or hinder (sharp
corners, welds with burrs, rough edges, etc.).
4.3 Steps and landings shall offer satisfactory slip resistance to avoid any risk of slipping.
4.4 Opening or closing of moving parts (gates), of adjustable parts (e. g. foldable, slidable) and of movable
parts shall not cause further hazards (for example by shearing or by falling) to users and other persons in the
vicinity.
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oSIST prEN ISO 14122-3:2014
ISO/DIS 14122-3
4.5 The structure and the steps shall be designed to satisfactorily resist the intended imposed loads.
4.5.1 The unfactored loads used for the structure in the industrial field can vary. For each application the
expected unfactored loads shall be defined. As a minimum the following assumptions for unfactored loads to
be considered, but higher values can be necessary:
2
for low density pedestrian traffic without load 1,5 kN/m
2
for low density pedestrian traffic with load or for high density pedestrian traffic 5 kN/m
4.5.2 Steps shall resist the following unfactored loadings:
if the clear width w < 1200 mm then 1,5 kN shall be distributed over an area of 100 mm × 100 mm, where
one boundary is the leading edge of the nosing applied at the middle of the stair width;
if the clear width w ≥ 1200 mm then respectively 1,5 kN shall be distributed simultaneously over each of
the 100 mm × 100 mm, areas applied
...
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