Machine tools safety - Presses - Part 4: Safety requirements for pneumatic presses (ISO 16092-4:2019)

This document, in addition to ISO 16092-1, specifies the technical safety requirements and measures to be adopted by persons undertaking the design, manufacture and supply of pneumatic presses which are intended to work cold metal or material partly of cold metal.
This document deals with all significant hazards relevant for pneumatic presses, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). All the phases of the lifetime of the machinery as described in ISO 12100:2010, 5.4, have been taken into consideration.

Werkzeugmaschinen-Sicherheit - Pressen - Teil 4: Pneumatische Pressen (ISO 16092-4:2019)

Dieses Dokument legt zusätzlich zu ISO 16092-1 die technischen Sicherheitsanforderungen und  Maßnahmen fest, die von Personen zu ergreifen sind, die die Konstruktion, Herstellung und Lieferung von pneumatischen Pressen durchführen, die dazu bestimmt sind, Kaltmetall oder teilweise aus Kaltmetall bestehendes Material zu bearbeiten.
Dieses Dokument behandelt alle wesentlichen Gefährdungen, die für pneumatische Pressen relevant sind, wenn diese bestimmungsgemäß und unter durch den Hersteller vernünftigerweise vorhersehbaren Bedingungen von missbräuchlicher Verwendung eingesetzt werden (siehe Abschnitt 4). Alle Phasen der Lebensdauer der Maschine, wie in ISO 12100:2010, 5.4, beschrieben, wurden berücksichtigt.

Sécurité des machines outils - Presses - Partie 4: Exigences de sécurité pour les presses pneumatiques (ISO 16092-4:2019)

Le présent document, appliqué avec l'ISO 16092‑1, spécifie les exigences techniques de sécurité et les dispositions que doivent respecter les personnes chargées de la conception, de la construction et de la fourniture des presses pneumatiques qui sont conçues pour le travail à froid des métaux ou des matériaux partiellement constitués de métaux à froid.
Le présent document traite de tous les phénomènes dangereux significatifs applicables aux presses pneumatiques en utilisation normale et quand elles font l'objet d'un mauvais usage raisonnablement prévisible par le fabricant (voir Article 4). Toutes les phases de la vie de la machine, telles que décrites dans l'ISO 12100:2010, 5.4, ont été prises en compte.

Varnost obdelovalnih strojev - Stiskalnice - 4. del: Varnostne zahteve za pnevmatske stiskalnice (ISO 16092-4:2019)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
09-Sep-2020
Completion Date
09-Sep-2020

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SLOVENSKI STANDARD
SIST EN ISO 16092-4:2021
01-februar-2021
Nadomešča:
SIST EN 13736:2003+A1:2009
Varnost obdelovalnih strojev - Stiskalnice - 4. del: Varnostne zahteve za
pnevmatske stiskalnice (ISO 16092-4:2019)

Machine tools safety - Presses - Part 4: Safety requirements for pneumatic presses

(ISO16092-4:2019)

Werkzeugmaschinen Sicherheit - Pressen - Teil 4: Pneumatische Pressen (ISO 16092-

4:2019)

Sécurité des machines outils - Presses - Partie 4: Exigences de sécurité pour les

presses pneumatiques (ISO 16092-4:2019)
Ta slovenski standard je istoveten z: EN ISO 16092-4:2020
ICS:
25.120.10 Kovaški stroji. Stiskalnice. Forging equipment. Presses.
Škarje Shears
SIST EN ISO 16092-4:2021 en,fr,de

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

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SIST EN ISO 16092-4:2021
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SIST EN ISO 16092-4:2021
EN ISO 16092-4
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 25.080.01 Supersedes EN 13736:2003+A1:2009
English Version
Machine tools safety - Presses - Part 4: Safety
requirements for pneumatic presses (ISO 16092-4:2019)

Sécurité des machines outils - Presses - Partie 4: Werkzeugmaschinen - Sicherheit von Pressen - Teil 4:

Exigences de sécurité pour les presses pneumatiques Pneumatische Pressen (ISO 16092-4:2019)

(ISO 16092-4:2019)
This European Standard was approved by CEN on 29 July 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 NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
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 ISO 16092-4:2020 E

worldwide for CEN national Members.
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SIST EN ISO 16092-4:2021
EN ISO 16092-4:2020 (E)
Contents Page

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

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of EU Directive 2006/42/EC aimed to be covered .................................................. 4

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SIST EN ISO 16092-4:2021
EN ISO 16092-4:2020 (E)
European foreword

This document (EN ISO 16092-4:2020) has been prepared by Technical Committee ISO/TC 39 "Machine

tools" in collaboration with Technical Committee CEN/TC 143 “Machine tools - Safety” the secretariat of

which is held by SNV.

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 March 2021, and conflicting national standards shall

be withdrawn at the latest by March 2021.

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 13736:2003+A1:2009.

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 the 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, 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.
Endorsement notice

The text of ISO 16092-4:2019 has been approved by CEN as EN ISO 16092-4:2020 without any

modification.
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SIST EN ISO 16092-4:2021
EN ISO 16092-4:2020 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered

This European Standard has been prepared under a Commission’s standardization request "M/396

Mandate to CEN and CENELEC for Standardisation in the field of machinery " 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).

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 Annex I of Directive

2006/42/EC
The relevant Essential Clause(s)/sub-clause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.1.2 Principles of safety 5.1
integration
1.1.8 Seating not covered
1.2. Control systems 5.2/5.3.7/5.4/5.5
1.3.3 Risk due to falling or 5.3.6/5.3.7
ejected objects
1.3.7 Risks related to moving 5.5
parts
1.3.8 Choice of protection 5.5
against risks arising from
moving parts
1.3.9 Risks of uncontrolled 5.4.1/5.4.6/5.4.7/5.5
movements
1.4 Required characteristics of 5.3.2/5.4.1/5.4.7/5.5
guards and protective devices
1.5.3 Energy supply other than 5.2.3
electricity
1.5.4 Errors of fitting not covered
1.6.1 Machinery maintenance 5.5
1.7 Information 7
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SIST EN ISO 16092-4:2021
EN ISO 16092-4:2020 (E)
The relevant Essential Clause(s)/sub-clause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.7.4 7.4

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.
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SIST EN ISO 16092-4:2021
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SIST EN ISO 16092-4:2021
INTERNATIONAL ISO
STANDARD 16092-4
First edition
2019-11
Machine tools safety — Presses —
Part 4:
Safety requirements for pneumatic
presses
Sécurité des machines outils — Presses —
Partie 4: Exigences de sécurité pour les presses pneumatiques
Reference number
ISO 16092-4:2019(E)
ISO 2019
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 List of significant hazards ........................................................................................................................................................................... 2

5 Safety requirements and/or measures ......................................................................................................................................... 2

5.1 General ........................................................................................................................................................................................................... 2

5.2 Basic design considerations ........................................................................................................................................................ 2

5.2.1 Hydraulic and pneumatic systems — Common features .............................................................. 2

5.2.2 Pneumatic systems ........................................................................................................................................................ 2

5.2.3 Hydraulic systems ........................................................................................................................................................... 2

5.2.4 Electric systems ................................................................................................................................................................ 2

5.3 Mechanical hazards in the tools area ................................................................................................................................... 2

5.3.1 Major danger zone .......................................................................................................................................................... 2

5.3.2 Safeguarding measures .............................................................................................................................................. 2

5.3.3 Other safety requirements ...................................................................................................................................... 2

5.3.4 Release of trapped persons between the tools ...................................................................................... 2

5.3.5 Release of persons trapped inside enclosed areas ............................................................................. 3

5.3.6 Prevention of gravity fall during maintenance or repair .............................................................. 3

5.3.7 Prevention of unintended gravity fall during production (down-stroking press) .. 3

5.4 Control and monitoring system ................................................................................................................................................ 3

5.4.1 Control and monitoring functions .................................................................................................................... 3

5.4.2 Muting ....................................................................................................................................................................................... 4

5.4.3 Selection devices .............................................................................................................................................................. 4

5.4.4 Position sensors................................................................................................................................................................ 4

5.4.5 Control devices .................................................................................................................................................................. 4

5.4.6 Valves ......................................................................................................................................................................................... 4

5.4.7 Performance level of safety functions ........................................................................................................... 4

5.5 Tool-setting, trial strokes, maintenance and lubrication .................................................................................19

5.6 Mechanical hazards — Other ..................................................................................................................................................19

5.7 Slips, trips and falls ..........................................................................................................................................................................19

5.8 Protection against other hazards .........................................................................................................................................19

6 Verification of the safety requirements and/or measures ....................................................................................19

7 Information for use .........................................................................................................................................................................................20

7.1 General ........................................................................................................................................................................................................20

7.2 Marking ......................................................................................................................................................................................................20

7.3 Warnings ...................................................................................................................................................................................................21

7.4 Instruction handbook ....................................................................................................................................................................21

Annex A (informative) Additional significant hazards, hazardous situations and protective

measures ....................................................................................................................................................................................................................22

Annex B (normative) Calculation of minimum distances ............................................................................................................23

Annex C (informative) Examples and principles of pneumatic press and power interlocking ............24

Bibliography .............................................................................................................................................................................................................................27

© ISO 2019 – All rights reserved iii
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(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 of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 39, Machine tools, Subcommittee

SC 10, Safety.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
A list of all parts in the ISO 16092 series can be found on the ISO website.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
Introduction
This document is a type-C 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 people 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.

The machinery concerned and the extent to which hazards, hazardous situations or hazardous events

are covered are indicated in the Scope of this document.

When requirements of this type-C standard are different from those which are stated in type-A or

type-B standards, the requirements of this type-C standard take precedence over the requirements of

the other standards for machines that have been designed and built according to the requirements of

this type-C standard.
© ISO 2019 – All rights reserved v
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SIST EN ISO 16092-4:2021
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SIST EN ISO 16092-4:2021
INTERNATIONAL STANDARD ISO 16092-4:2019(E)
Machine tools safety — Presses —
Part 4:
Safety requirements for pneumatic presses
1 Scope

This document, in addition to ISO 16092-1, specifies the technical safety requirements and measures

to be adopted by persons undertaking the design, manufacture and supply of pneumatic presses which

are intended to work cold metal or material partly of cold metal.

This document deals with all significant hazards relevant for pneumatic presses, when they are used

as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer

(see Clause 4). All the phases of the lifetime of the machinery as described in ISO 12100:2010, 5.4, have

been taken into consideration.
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.

ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their

components

ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction

ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General

principles for design

ISO 16092-1:2017, Machine tools safety — Presses — Part 1: General safety requirements

ISO 13851:2019, Safety of machinery — Two-hand control devices — Functional aspects and design

principles
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12100:2010, ISO 13849-1:2015,

ISO 16092-1:2017 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
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
restraint valve
device which protects against a gravity fall of the slide/ram
3.2
overall closing time

time interval from the initiation of a slide movement at TDC to the termination of the movement (the

closing of tools) at BDC
© ISO 2019 – All rights reserved 1
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
4 List of significant hazards

This clause contains all the significant hazards, hazardous situations and events identified by risk

assessment as significant for the machines defined in the scope and which require a specific action to

eliminate or reduce the risk.

These hazards are listed in ISO 16092-1:2017, Annex A. Additional hazards are listed in Table A.1.

5 Safety requirements and/or measures
5.1 General

Pneumatic presses shall comply with the safety requirements and/or protective/risk reduction

measures of this clause. In addition, the machine shall be designed according to the principles of

ISO 12100 for relevant but not significant hazards which are not dealt with by this document.

5.2 Basic design considerations
5.2.1 Hydraulic and pneumatic systems — Common features
ISO 16092-1:2017, 5.2.1, shall apply.
5.2.2 Pneumatic systems
ISO 16092 1:2017, 5.2.2, shall apply.
5.2.3 Hydraulic systems

In addition to the requirements given in ISO 16092-1:2017, 5.2.3, the following shall apply.

Where a pneumatic press is fitted with a pneumatic/hydraulic intensifier, the general requirements in

ISO 4413 shall be followed in designing the hydraulic system.
5.2.4 Electric systems
ISO 16092 1:2017, 5.2.4, shall apply.
5.3 Mechanical hazards in the tools area
5.3.1 Major danger zone
ISO 16092-1:2017, 5.3.1, shall apply.
5.3.2 Safeguarding measures
ISO 16092-1:2017, 5.3.2, shall apply
5.3.3 Other safety requirements
ISO 16092-1:2017, 5.3.3, shall apply.
5.3.4 Release of trapped persons between the tools
ISO 16092-1:2017, 5.3.4, shall apply.
2 © ISO 2019 – All rights reserved
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
5.3.5 Release of persons trapped inside enclosed areas
ISO 16092-1:2017, 5.3.5, shall apply.
5.3.6 Prevention of gravity fall during maintenance or repair

In addition to the requirements given in ISO 16092-1:2017, 5.3.6, the following shall apply.

On presses with an opening stroke length of more than 500 mm and a depth of table of more than

800 mm, a mechanical restraint device shall be permanently fixed and integrated with the press. It can

be manually operated.

If an integrated device, when active, cannot be easily seen from the operator's position, an additional

clear indication of the position of the device shall be provided.

5.3.7 Prevention of unintended gravity fall during production (down-stroking press)

5.3.7.1 Measures shall be provided to prevent unintended gravity fall of the slide/ram in the production

mode with manual or automatic feed or removal (see Tables 1 and 2). Such a fall can be due to a failure of

the pneumatic system, mechanical failure or a failure of the electrical control system.

In this case, the following shall be provided:
— a mechanical restraint device;
— a pneumatic restraint device, as defined in 5.3.7.2; or

— a combination of a single valve pneumatic restraint device and a mechanical restraint device.

The restraint devices shall operate automatically and be effective whenever the tool is stopped and

access to the tools is possible for the operator.

5.3.7.2 The restraint device shall consist of one or more of the following measures, provided that they

are capable of holding up the slide/ram:
a) return spring;
b) clamping device;

c) two pneumatic restraint valves, one of which is fitted as close as possible to the cylinder outlet,

using flanged or welded pipework, capable of holding the slide/ram.
5.4 Control and monitoring system
5.4.1 Control and monitoring functions

5.4.1.1 In addition to the requirements given in ISO 16092-1:2017, 5.4.1, the following control and

monitoring functions shall apply.

5.4.1.2 For presses pneumatically controlled with a stroke length equal to or less than 30 mm, and

a maximum press force equal to or less than 1 000 N, the two-hand control device shall be fixed at the

minimum distance as calculated by Formula (1):
tt=×3 (1)
max
© ISO 2019 – All rights reserved 3
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
where
t is the overall response time;
t is the maximum overall closing time (see also Annex B).
max

NOTE The factor 3 is intended to compensate the type of two-hand control device selected.

This subclause applies to presses fitted with two-hand control devices used for normal operation. They

shall at least correspond to type IIIB of ISO 13851;

It shall not be possible for the overall closing time to be exceeded by any adjustment.

5.4.1.3 Power interlocking, as defined in ISO 14119:2013, 3.31, may be provided for presses fitted with

interlocking guards. The guard interlocking device shall be positively linked with the valve to directly

control the flow of fluid to and from the cylinder (see Annex C).
5.4.2 Muting

In addition to the requirements given in ISO 16092-1:2017, 5.4.2, the following shall apply.

The means for setting the start point at which the safeguarding system is muted during the closing

stroke shall be:
— a position signal when the tools are closed; and

— a pressure signal or suitable alternative signals which actuate when the machine begins to apply

the force.
5.4.3 Selection devices
ISO 16092-1:2017, 5.4.3, shall apply.
5.4.4 Position sensors
ISO 16092-1:2017, 5.4.4, shall apply.
5.4.5 Control devices
ISO 16092-1:2017, 5.4.5, shall apply.
5.4.6 Valves

Manual override devices shall not be directly fitted to restraint valves. If manual override devices are

incorporated into other valves for test or maintenance purposes, they shall require the use of a tool to

operate the override.
This override shall be of the non-locking type.
5.4.7 Performance level of safety functions

Safety functions of a pneumatic press shall meet the requirements stated in the Tables 1 and 2. Figure 1

shows an example of all relevant parts of a control system of pneumatic press with a safety function to

stop any down stroke of the slide by ESPE using AOPD.
4 © ISO 2019 – All rights reserved
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SIST EN ISO 16092-4:2021
ISO 16092-4:2019(E)
Key

1 overall SRP/CS of a safety function "Stop slide down stroke by ESPE using AOPD"

2 "Input": ESPE using AOPD

3 "Logic": control parts (plausibility check of selection, Logic of AOPD, Logic of muting…)

4 output: pneumatic safety-related part
5 pneumatic a
...

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