SIST EN 1612:2020
(Main)Plastics and rubber machines - Reaction moulding machines and plants - Safety requirements
Plastics and rubber machines - Reaction moulding machines and plants - Safety requirements
This draft European standard specifies the essential safety requirements applicable to the design and construction of reaction moulding machines and plants.
The significant and specific hazards are listed in Annex A and are dealt with in this draft European standard.
This draft European standard does not cover the hazards related to the cutting unit (see EN 14886:2008).
This draft European standard does not cover the requirements for the design of exhaust systems.
This draft European standard does not cover the hazards arising from the assembly of separate units not supplied at the same time by the same manufacturer.
This draft European standard applies to reaction moulding machines and plants manufactured after its date of publication.
Reaction moulding machines usually do not produce explosive atmospheres. Where materials are processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are not dealt with in this document.
Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen und -anlagen - Sicherheitsanforderungen
Dieses Dokument legt die wesentlichen Sicherheitsanforderungen für die Konstruktion und den Bau von Reaktionsgießmaschinen und -anlagen, wie in 3.1 und 3.2 definiert, fest.
Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefähr-dungsereignisse in sämtlichen Phasen der Lebensdauer der Maschine (siehe EN ISO 12100:2010, 5.4), wenn Reaktionsgießmaschinen und -anlagen bestimmungsgemäß und unter Bedingungen, die vom Hersteller als Fehlanwendung vernünftigerweise vorhersehbar sind, verwendet werden (siehe Anhang A).
Eine Reaktionsgießmaschine beginnt am Arbeitsbehälter/an den Arbeitsbehältern und endet am Mischkopf/an den Mischköpfen.
Eine Reaktionsgießanlage beginnt am Arbeitsbehälter/an den Arbeitsbehältern und endet an der Produktformungs- und Transporteinrichtung oder an der Formgebungseinrichtung (siehe 3.6 und 3.7).
Dieses Dokument gilt nicht für Reaktionsgießmaschinen und -anlagen, die vor dem Datum ihrer Veröffentlichung hergestellt wurden.
ANMERKUNG Reaktionsgießmaschinen erzeugen üblicherweise keine explosionsfähigen Atmosphären. Wenn Materialien verarbeitet werden, die eine explosionsfähige Atmosphäre hervorrufen können, kann die Richtlinie 2014/34/EU für Geräte und Schutzsysteme zur bestimmungsgemäßen Verwendung in explosionsgefährdeten Bereichen (ATEX) angewendet werden.
Explosionsgefahren sind in diesem Dokument nicht behandelt.
Brandgefahren sind in diesem Dokument nicht behandelt.
Dieses Dokument behandelt nicht die Anforderungen für die Konstruktion von Absaugsystemen.
Machines pour les matières plastiques et le caoutchouc - Machines et installations de moulage par réaction - Prescriptions de sécurité
Le présent document spécifie les prescriptions essentielles de sécurité applicables à la conception et à la construction des machines et installations de moulage par réaction, telles que définies en 3.1 et 3.2.
Le présent document traite de tous les phénomènes dangereux, situations dangereuses ou événements dangereux pendant toutes les phases de son cycle de vie (voir l’EN ISO 12100:2010, 5.4), lorsque les des machines et installations de moulage par réaction sont utilisées selon l’usage prévu ou font l’objet d’un mauvais usage raisonnablement prévisible par le fabricant (voir Annexe A).
Une machine de moulage par réaction commence au(x) cuve(s) de stockage et se termine au(x) tête(s) de mélange.
Une installation de moulage par réaction commence au(x) cuve(s) de stockage et se termine à l'équipement de mise en forme et de transport de produit ou à l'équipement de moulage (voir 3.6 et 3.7).
Le présent document n’est pas applicable aux machines et installations de moulage par réaction fabriquées avant sa date de publication.
NOTE Les machines et installations de moulage par réaction ne produisent généralement pas d'atmosphères explosives. Lorsque les matériaux transformés sont susceptibles de produire une atmosphère explosive, la Directive 2014/34/EU relative aux appareils et systèmes de protection destinés à être utilisés en atmosphères explosibles (ATEX) peut être appliquée.
Les phénomènes dangereux d’explosion ne sont pas traités dans le présent document.
Les phénomènes dangereux d’incendie ne sont pas traités dans le présent document.
Le présent document ne contient pas de prescriptions relatives à la conception des systèmes d'aspiration.
Stroji za predelavo gume in plastike - Stroji in naprave za tlačno litje - Varnostne zahteve
Ta osnutek evropskega standarda določa osnovne varnostne zahteve za načrtovanje ter izdelavo strojev in naprav za tlačno litje. Vsa večja in znatna tveganja so navedena v dodatku A ter obravnavana v tem osnutku evropskega standarda. Ta osnutek evropskega standarda ne obravnava nevarnosti, povezanih z rezalno enoto (glej standard EN 14886:2008). Ta osnutek evropskega standarda ne zajema zahtev za načrtovanje izpušnih sistemov. Ta osnutek evropskega standarda ne zajema nevarnosti, ki izhajajo iz sestava ločenih enot, ki jih ne dobavi istočasno isti proizvajalec. Ta osnutek evropskega standarda se uporablja za stroje in naprave za tlačno litje, ki so bili izdelani po datumu njegove objave. Stroji in naprave za tlačno litje običajno ne proizvajajo eksplozivnih atmosfer. Če se obdelujejo materiali, ki lahko ustvarijo eksplozivno atmosfero, je priporočljivo uporabiti Direktivo 94/9/ES v zvezi z opremo, namenjeno za uporabo v potencialno eksplozivnih atmosferah (ATEX). Ta dokument ne zajema nevarnosti eksplozije.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1612:2020
01-januar-2020
Nadomešča:
SIST EN 1612-1:2000+A1:2008
Stroji za predelavo gume in plastike - Stroji in naprave za tlačno litje - Varnostne
zahteve
Plastics and rubber machines - Reaction moulding machines and plants - Safety
requirements
Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen und -anlagen -
Sicherheitsanforderungen
Machines pour les matières plastiques et le caoutchouc - Machines et installations de
moulage par réaction - Prescriptions de sécurité
Ta slovenski standard je istoveten z: EN 1612:2019
ICS:
83.200 Oprema za gumarsko Equipment for the rubber and
industrijo in industrijo plastics industries
polimernih materialov
SIST EN 1612:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 1612:2020
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SIST EN 1612:2020
EN 1612
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 83.200 Supersedes EN 1612-1:1997+A1:2008
English Version
Plastics and rubber machines - Reaction moulding
machines and plants - Safety requirements
Machines pour les matières plastiques et le caoutchouc Kunststoff- und Gummimaschinen -
- Machines et installations de moulage par réaction - Reaktionsgießmaschinen und -anlagen -
Prescriptions de sécurité Sicherheitsanforderungen
This European Standard was approved by CEN on 21 July 2019.
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1612:2019 E
worldwide for CEN national Members.
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SIST EN 1612:2020
EN 1612:2019 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Safety requirements and/or protective/risk reduction measures . 12
4.1 General . 12
4.2 Start function . 12
4.3 Stop function . 13
4.4 Restart function . 13
4.5 Safety related parts of the control system . 13
4.6 Crushing/impact hazards due to moving parts and/or units . 13
4.6.1 Drive and power transmission . 13
4.6.2 Moulding, product shaping and transport equipment . 13
4.6.3 Setting operation mode . 14
4.6.4 Cleaning operation mode . 14
4.6.5 Mixing head . 14
4.6.6 Mould transport equipment. 14
4.7 Hazards due to instability . 15
4.8 Hazards due to whiplash of hoses . 15
4.9 Hazards due to fluid ejection . 16
4.10 Hazards due to overpressure . 16
4.11 Hazards due to malfunction of the hydraulic and pneumatic systems . 16
4.12 Burning hazards due to elevated temperatures . 16
4.13 Hazards due to contact with the components or due to the inhalation of gases
hazardous to health . 16
4.14 Contact reactions hazards due to incorrect connection of hoses . 17
4.15 Hazards due to neglect of ergonomic principles . 17
4.16 Electrical hazards . 17
4.16.1 Protection against direct contact . 17
4.16.2 Protection against indirect contact . 17
4.16.3 Protection against ingress of solids and liquids . 17
4.17 Emergency stop . 17
4.18 Hazards generated by noise . 18
4.18.1 Noise reduction at source by design . 18
4.18.2 Noise reduction by protective measures . 18
5 Verification of the safety requirements and/or protective/risk reduction measures . 18
6 Information for use . 21
6.1 General . 21
6.2 Marking . 21
6.3 Instruction handbook . 22
Annex A (informative) List of significant hazards . 24
Annex B (normative) Noise measurement and declaration . 26
2
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B.1 Introduction. 26
B.2 Determination of the A-weighted emission sound pressure level at the workstation . 26
B.2.1 Basic standards and measurement procedure . 26
B.2.2 Measurement uncertainty . 26
B.3 Determination of the A-weighted sound power level . 27
B.3.1 General . 27
B.3.2 Basic standards and measurement procedure . 27
B.3.3 Measurement uncertainty . 27
B.4 Mounting and operating conditions. 27
B.5 Information to be recorded and reported . 28
B.5.1 General . 28
B.5.2 General data. 28
B.5.3 Mounting and operating conditions. 28
B.5.4 Standards . 28
B.5.5 Noise data . 28
B.6 Declaration and verification of noise emission values . 28
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered . 30
Bibliography . 32
3
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EN 1612:2019 (E)
European foreword
This document (EN 1612:2019) has been prepared by Technical Committee CEN/TC 145 “Plastics and
rubber machines”, the secretariat of which is held by UNI.
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 April 2020, and conflicting national standards shall be
withdrawn at the latest by April 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 will supersede EN 1612-1:1997+A1:2008.
In comparison with the previous edition, the following technical modifications have been made:
— clarification that reaction moulding machines and plants are dealt with;
— revised type-A and type-B standards are taken into account;
— list of significant hazards moved into an informative annex;
— the performance levels of safety related parts of control systems are specified in accordance with
EN ISO 13849-1:2015;
— technical specifications for moulding and transport equipment safeguarding are given;
— technical specifications for positioning of the emergency stop devices are given;
— the annex for noise measurement and declaration has been revised.
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 Directives.
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 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.
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Introduction
This document is a type-C standard as stated in EN ISO 12100:2010.
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 organizations, 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.
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1 Scope
This document specifies the essential safety requirements applicable to the design and construction of
reaction moulding machines and plants as defined in 3.1 and 3.2.
This document deals with all significant hazards, hazardous situations or hazardous events during all
phases of the machine life cycle (see EN ISO 12100:2010, 5.4), when reaction moulding machines and
plants are used as intended and under conditions of misuse that are reasonably foreseeable by the
manufacturer (see Annex A).
A reaction moulding machine begins at the working tank(s) and ends at the mixing head(s).
A reaction moulding plant begins at the working tank(s) and ends at the product shaping and transport
equipment or at the moulding equipment (see 3.6 and 3.7).
This document is not applicable to reaction moulding machines and plants manufactured before the date
of its publication.
NOTE Reaction moulding machines and plants usually do not produce explosive atmospheres. Where materials
are processed, which may cause an explosive atmosphere, the Directive 2014/34/EU on the Equipment intended
for use in Potentially Explosive Atmospheres (ATEX) can be applied.
Explosion hazards are not dealt with in this document.
Fire hazards are not dealt with in this document.
This document does not cover the requirements for the design of the exhaust systems.
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 574:1996+A1:2008, Safety of machinery — Two-hand control devices — Functional aspects —
Principles for design
EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and
general principles
EN 614-2:2000+A1:2008, Safety of machinery — Ergonomic design principles — Part 2: Interactions
between the design of machinery and work tasks
EN 1005 (all parts), Safety of machinery — Human physical performance
1
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005, modified)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 61496-1:2013, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2012)
1
As impacted by EN 60204-1:2006/A1:2009.
6
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EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane (ISO
3744:2010)
EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting
plane (ISO 3746:2010)
EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components (ISO 4413:2010)
EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components (ISO 4414:2010)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 9614-2:1996, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 2: Measurement by scanning (ISO 9614-2:1996)
EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions in an essentially free field over a
reflecting plane with negligible environmental corrections (ISO 11201:2010)
EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions applying approximate environmental
corrections (ISO 11202:2010)
EN ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions applying accurate environmental
corrections (ISO 11204:2010)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13732-1:2008, Ergonomics of the thermal environment — Methods for the assessment of human
responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006)
EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (ISO 13849-1:2015)
EN ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design (ISO
13850:2015)
EN ISO 13855:2010, Safety of machinery — Positioning of safeguards with respect to the approach speeds
of parts of the human body (ISO 13855:2010)
EN ISO 13856-1:2013, Safety of machinery — Pressure-sensitive protective devices — Part 1: General
principles for design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-1:2013)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
7
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EN ISO 14119:2013, Safety of machinery — Interlocking devices associated with guards — Principles for
design and selection (ISO 14119:2013)
EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and construction
of fixed and movable guards (ISO 14120:2015)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
reaction moulding machine
machine that consists of at least one working tank, a metering unit and a mixing head
3.2
reaction moulding plant
complex installation for reaction moulding which consists of one or more reaction moulding machine(s),
a moulding equipment or a product shaping and transport equipment for the feeding of products
Note 1 to entry: See 3.1, 3.6 and 3.7.
3.3
working tank
tank which is part of the reaction moulding machine and contains at least one of the components
Note 1 to entry: See Figure 1.
Note 2 to entry: One tank may be used for each component or a mixture of more components.
3.4
mixing head
part of the reaction moulding machine for mixing components and delivery that can be manually operated
or powered
Note 1 to entry: See Figure 1.
8
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Key
1 working tank
2 metering unit
3 mixing head
Figure 1 — Example of reaction moulding machine (side view)
3.5
components
chemical and mineral components that need to be mixed in the process to produce the final product
3.6
product shaping and transport equipment
part of the plant for the transport and shaping of the continuous product
Note 1 to entry: See Figure 2.
9
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EN 1612:2019 (E)
Key
1 product
2 side wall of product shaping and transport equipment for limiting the width of the product
3 equipment for feeding side cover sheet
4 product shaping and transport area
5 mixing head
6 equipment for manipulating the mixing head
Figure 2 — Product shaping and transport equipment (top view)
3.7
moulding equipment
equipment for continuous or discontinuous production of cured parts by one or more moulds
Note 1 to entry: See Figure 3 and Figure 4.
3.8
mould transport equipment
part of the plant for the transport of the moulds for continuous production
Note 1 to entry: Loading/unloading could be automatic or manual in a restricted area that is not shown in the
figures.
3.9
non-electrically controlled mixing head
mixing head opened and closed mechanically
10
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EN 1612:2019 (E)
Key
1 mould carrier frame
2 lower mould
3 upper mould
4 mixing head
Figure 3 — Fixed moulding equipment with fixed/movable mixing head for discontinuous
production (side view)
11
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EN 1612:2019 (E)
Key
1 mould transport equipment
2 open mould
3 closed mould
4 mixing head
Figure 4 — Mobile moulding equipment with fixed/movable mixing head, for continuous
production (top view)
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Machinery 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 EN ISO 12100:2010 for
relevant but not significant hazards, which are not dealt with by this document.
4.2 Start function
The start of an operation shall be possible only when all safeguards are in place and functional (see
EN 60204-1:2006, 9.2.5.2). The machine shall only be started by actuation of the start device provided
for that purpose.
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4.3 Stop function
A normal stop command shall be provided to bring the machine to a stop. The normal stop command
shall function as a category 0 or 1 in accordance with EN 60204-1:2006, 9.2.2 and required Performance
level (PL ) = c EN ISO 13849-1:2015.
r
An additional operational stop that does not cut off the energy supply to the actuators may be installed
according to category 2 in accordance with EN 60204-1:2006, 9.2.2 and PL = b EN ISO 13849-1:2015 for
r
the movements which are enclosed by safeguards.
4.4 Restart function
An interruption or a failure of the power supply shall not result in a loss of safety function and restoration
of the energy supply shall not result in the automatic restarting of the machine (see EN ISO 12100:2010,
6.2.11.4 and 6.2.11.5).
4.5 Safety related parts of the control system
The safety related parts of the control system shall be in accordance with EN ISO 13849-1:2015. PL for
r
the relevant safety functions are given in the corresponding subclauses.
4.6 Crushing/impact hazards due to moving parts and/or units
4.6.1 Drive and power transmission
The access to moving parts of the drive and power transmission shall be prevented by enclosing guards
according to EN ISO 14120:2015. The openings in the guards shall comply with EN ISO 13857:2008,
Table 4.
4.6.2 Moulding, product shaping and transport equipment
The access to all the moving parts during production shall be prevented by distance guards in accordance
with EN ISO 13857:2008, Table 2 and Table 4 and EN ISO 14120:2015, in combination with one or more
of the following safeguards, in order to stop all dangerous movements if actuated:
— interlocking guards with or without guard locking in accordance with EN ISO 14119:2013; for
interlocked guards where full body access is possible, it shall be possible to open them from the inside
without the use of ancillary means;
— trip devices:
— electro-sensitive protective equipment in accordance with EN 61496-1:2013, type 2;
— pressure-sensitive protective mats in accordance with EN ISO 13856-1:2013;
— laser scanner in accordance with EN 61496-1:2013.
Interlocking guards without guard locking and trip devices shall be positioned in accordance with
EN ISO 13855:2010.
If full body access is possible a reset device according to EN ISO 13849-1:2015, 5.2.2 shall be installed to
prevent the unexpected restart when somebody is inside the protected area.
of the safety related parts of the control system in accordance with EN ISO 13849-1:2015 for the
The PLr
stopping of dangerous moving parts of the machine shall be as follows:
— handling unit (e.g. for parts or mixing head or moulds) ≤ 3 axes: PL = c;
r
— handling unit (e.g. for parts or mixing head or moulds) > 3 axes: PL = d;
r
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— moulds closing: PL = d;
r
— moulds opening: PL = b.
r
4.6.3 Setting operation mode
If the safeguards shall be disabled for setting, a lockable mode selector in accordance with
EN ISO 12100:2010, 6.2.11.10 and EN 60204-1:2006, 9.2.3 and 9.2.4 shall be used in combination with
one of the following devices:
a) a two-hand control device in accordance with EN 574:1996+A1:2008 type IIIB and positioned in
accordance with EN ISO 13855:2010; for movements that can create crushing/shearing hazards (e.g.
mould closing) the safety related part of the control circuit shall be in accordance with PL = d of
r
EN ISO 13849-1:2015; for other hazards (e.g. mould opening) PL = b of EN ISO 13849-1:2015; the
r
operator shall have a clear view of the dangerous area;
b) a hold-to-run control device as defined in EN ISO 12100:2010, 3.28.3 according to PL = c of
r
EN ISO 13849-1:2015, in combination with a max speed of 2 m/min in accordance with PL = d of
r
EN ISO 13849-1:2015 for mould closing and PL = b of EN ISO 13849-1:2015 for mould opening; the
r
operator shall have a cle
...
SLOVENSKI STANDARD
oSIST prEN 1612:2016
01-februar-2016
6WURML]DSUHGHODYRJXPHLQSODVWLNH6WURMLLQQDSUDYH]DWODþQROLWMH9DUQRVWQH
]DKWHYH
Plastics and rubber machines - Reaction moulding machines and plants - Safety
requirements
Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen - Teil 1:
Sicherheitsanforderungen an Misch- und Dosiereinheiten
Ta slovenski standard je istoveten z: prEN 1612
ICS:
83.200 Oprema za gumarsko Equipment for the rubber and
industrijo in industrijo plastics industries
polimernih materialov
oSIST prEN 1612:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1612:2016
DRAFT
EUROPEAN STANDARD
prEN 1612
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2015
ICS 83.200 Will supersede EN 1612-1:1997+A1:2008
English Version
Plastics and rubber machines - Reaction moulding
machines and plants - Safety requirements
Kunststoff- und Gummimaschinen -
Reaktionsgießmaschinen - Teil 1:
Sicherheitsanforderungen an Misch- und
Dosiereinheiten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 145.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1612:2015 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Safety requirements and/or protective/risk reduction measures . 10
4.1 General . 10
4.2 Crushing/impact hazards due to moving parts and/or units . 11
4.3 Hazards due to instability . 12
4.4 Hazards due to whiplash of hoses . 12
4.5 Hazards due to fluid ejection . 12
4.6 Hazards due to overpressure . 13
4.7 Burning hazards due to elevated temperatures . 13
4.8 Hazards due to contact with the components or due to the inhalation of gases
hazardous to health . 13
4.9 Contact reactions hazards due to incorrect connection of hoses . 13
4.10 Hazards due to neglect of ergonomic principles . 13
4.11 Electrical hazards . 13
4.12 Emergency stop . 14
4.13 Hazards generated by noise . 14
4.13.1 Noise reduction at source by design . 14
4.13.2 Noise reduction by protective measures . 14
5 Verification of the safety requirements and/or protective/risk reduction measures . 14
6 Information for use . 16
6.1 Marking . 16
6.2 Instruction handbook . 17
Annex A (informative) List of significant hazards . 19
Annex B (normative) Noise measurement and declaration . 20
B.1 Introduction . 20
B.2 Determination of the A-weighted emission sound pressure level at the workstation . 20
B.2.1 Basic standards and measurement procedure . 20
B.2.2 Measurement uncertainty . 20
B.3 Determination of the A-weighted sound power level . 21
B.3.1 General . 21
B.3.2 Basic standards and measurement procedure . 21
B.3.3 Measurement uncertainty . 21
B.4 Mounting and operating conditions . 21
B.5 Information to be recorded and reported . 22
B.5.1 General . 22
B.5.2 General data . 22
B.5.3 Mounting and operating conditions . 22
B.5.4 Standards . 22
B.5.5 Noise data . 22
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B.6 Declaration and verification of noise emission values . 22
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC . 24
Bibliography . 25
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European foreword
This document (prEN 1612:2015) has been prepared by Technical Committee CEN/TC 145 “Plastics
and rubber machines”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1612-1:1997+A1:2008.
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.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
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Introduction
This document is a type C standard as stated in EN ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are
covered are indicated in the scope of this draft European Standard (Clause 1).
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
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1 Scope
This draft European standard specifies the essential safety requirements applicable to the design and
construction of reaction moulding machines and plants.
The significant and specific hazards are listed in Annex A and are dealt with in this draft European
standard.
This draft European standard does not cover the hazards related to the cutting unit
(see EN 14886:2008).
This draft European standard does not cover the requirements for the design of exhaust systems.
This draft European standard does not cover the hazards arising from the assembly of separate units
not supplied at the same time by the same manufacturer.
This draft European standard applies to reaction moulding machines and plants manufactured after its
date of publication.
Reaction moulding machines usually do not produce explosive atmospheres. Where materials are
processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment
intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are
not dealt with in this document.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 574:1996+A1:2008, Safety of machinery — Two-hand control devices — Functional aspects —
Principles for design
EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and
general principles
EN 614-2:2000+A1:2008, Safety of machinery — Ergonomic design principles — Part 2: Interactions
between the design of machinery and work tasks
EN 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005, modified)
EN 61496-1:2013, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2012)
EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO 3744:2010)
EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Survey method using an enveloping measurement surface over a
reflecting plane (ISO 3746:2010)
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EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components (ISO 4413:2010)
EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components (ISO 4414:2010)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 9614-2:1996, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 2: Measurement by scanning (ISO 9614-2:1996)
EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions in an essentially free field
over a reflecting plane with negligible environmental corrections (ISO 11201:2010)
EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions applying approximate
environmental corrections (ISO 11202:2010)
EN ISO 11204:2010, Acoustics —Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions applying accurate
environmental corrections (ISO 11204:2010)
EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13732-1:2008, Ergonomics of the thermal environment — Methods for the assessment of human
responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006)
EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control system — Part 1: General
principles for design (ISO 13849-1:2006)
EN ISO 13850:2008, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)
EN ISO 13855:2010, Safety of machinery — Positioning of safeguards with respect to the approach speeds
of parts of the human body (ISO 13855:2010)
EN ISO 13856-1:2013, Safety of machinery — Pressure-sensitive protective devices — Part 1: General
principles for design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-
1:2013)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
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3.1
working tank
tank which is part of the metering and mixing unit and contains one of the components
3.2
metering unit
unit for metering the components
3.3
mixing head
part of the metering and mixing unit for mixing and delivery which can be manually operated or
powered
Key
1 working tank
2 metering unit
3 mixing head
Figure 1 — Example of a metering and mixing unit
3.4
components
chemical and mineral components that need to be mixed in the process to produce the final product
3.5
reaction moulding plant
complex installation for reaction moulding which consists of one or more metering, mixing units,
moulding equipment
3.6
continuous moulding equipment
equipment for continuous moulding of semi-finished products which may be for example slabs, blocks
or continuous sandwich composites (see Figure 2)
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Key
1 product
2 side wall of moulding equipment
3 equipment for feeding side cover sheet
4 moulding equipment lower cover sheet
5 equipment for feeding lower cover sheet
6 mixing head
7 equipment for manipulating mixing head
8 cutting unit
9 equipment for delivery of cut product
Figure 2 — Continuous moulding equipment
3.7
moulding equipment for individual components
equipment for production of individual components
Note 1 to entry: This may be:
— fixed moulding equipment with a fixed/movable mixing head (see Figure 3);
— mobile moulding equipment with a fixed/movable mixing head (see Figure 4):
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Key
1 mould carrier frame
2 lower mould
3 upper mould
4 mixing head
Figure 3 — Fixed moulding equipment with fixed/movable mixing head
Key
1 mould transport equipment
2 open mould
3 closed mould
4 mixing head
Figure 4 — Mobile moulding equipment with fixed/movable mixing head
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Machinery 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 EN ISO 12100:2010 for
relevant but not significant hazards, which are not dealt with by this document.
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4.2 Crushing/impact hazards due to moving parts and/or units
The exposed couplings between pumps and motors shall be protected by fixed guards according to
EN 953:1997+A1:2009 and EN ISO 13857:2008.
The access to all the moving parts of the moulding equipment during automatic production shall be
prevented by fixed guards in combination with one or more of the following:
— interlocking guards with or without guard locking; the doors with locking device shall be openable
from inside without any key;
— trip devices; electro-sensitive protective equipment shall be of type 2 in accordance with
EN 61496-1:2013 and positioned in accordance with EN ISO 13855:2010. Pressure sensitive
protective devices shall be in accordance with EN ISO 13856-1:2013;
— laser scanner in accordance with EN 61496-1:2013.
If full body access is possible a reset device according to EN ISO 13849-1:2008 shall be installed to
prevent the unexpected restart when somebody is inside the protected area.
for the interlocking of the different parts or movements of the machine shall be as follows:
The PLr
— handling unit (e.g. for parts or mixing head or moulds) ≤ 3 axes PL = c (S2, F1, P1);
r
— handling unit (e.g. for parts or mixing head) > 3 axes PL = d (S2, F1, P2);
r
— moulds closing PL = b (S1, F2, P1);
r
— moulds opening PL = b (S1, F2, P1).
r
If some manual movements are required (e.g. moulds opening and closing, or product
loading/unloading) when the above safety measures are inhibited, it shall be used the following:
a) for semi-automatic production a two-hand control device designed in accordance with
EN 574:1996+A1:2008 type IIIA and positioned in accordance with EN ISO 13855:2010; for
movements that can create crushing/shearing hazards (e.g. mould closing) PL = d (S2, F2, P1),
r
otherwise (e.g. mould opening) PL = b (S1, F2, P1);
r
b) for setting operations a hold-to-run control device as defined in EN ISO 12100:2010, 3.28.3
according to EN ISO 13849-1:2008, PL = c (S2, F1, P1) in combination with a max speed of 2 m/min
r
PL = d (S2, F1, P2). The operator shall have a clear view of the danger area.
r
The hold to run control shall be a three position device:
1) 1st position: stop;
2) 2nd position: run;
3) 3rd position: stop.
A lockable mode selector switch shall be provided and the operating procedure shall be described
in the information for use (see 6.2). Only when the setting position on the mode selector switch is
selected shall the hold-to-run control be available for use.
The homing of the mixing head outside the protected area shall be controlled with a hold to run control
device according to PL = c (S2, F1, P1) in combination with a max speed of 2 m/min PL = d (S2, F1, P2).
r r
The operator shall have a clear view of the danger area.
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Cleaning shall be done with the machine at the rest. If it is necessary to clean while the machine is
running the same requirements described above for setting shall be applied.
When it is necessary to stand in front of mould transport equipment to do loading, unloading, cleaning
operations, etc.:
— shearing and crushing points at mould transport equipment shall be eliminated by design or by
fixed guards;
— drawing-in between mould transport equipment and guards shall be prevented by means of trip
devices. PL = b (S1,F2,P1);
r
— in order to minimize the risk of injury from impact, the maximum speed of linear movement for
mould transport equipment shall not exceed 18 m/min. PL = c (S1, F2, P2).
r
4.3 Hazards due to instability
The mixing head shall be bolted in a suitable structure able to support the weight and the applied
power during the operation. See also 6.2.
4.4 Hazards due to whiplash of hoses
Whiplash of hoses shall be prevented by fixed enclosing guards or:
— binding the hoses together;
— attaching the hoses to a fixed element.
This shall be done at least every 75 cm.
Flexible hoses and their connections shall be designed to prevent tearing from their fittings and
unintentional detachment from connection points.
Flexible hoses shall not be used to support the mixing head.
See 6.1 and 6.2.
4.5 Hazards due to fluid ejection
Hose assemblies shall be marked according to 6.1.
Because of the need to replace hoses (see 6.2) a counter for dynamic load changes shall be provided for
metering and mixing units which work at a pressure of more than 40 bar.
Adjustment devices on the mixing head, for example screws or pins shall be designed in such a way that
they are retained in the head so that unintentional complete removal of these devices and the resulting
outflow of fluids is prevented.
It shall not be possible for fluids to be released from the mixing head due to:
— failure of the energy supply and/or control circuit;
— unexpected restoration of the energy supply.
This may be achieved for example:
— by means of a valve which shall automatically close in case of any failure of the energy supply;
— by a requirement to restart the machine at the control panel after any failure of the energy supply.
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The safety related parts of the control system for the mixing head shall be PL = b (S1,F2,P1) of
r
EN ISO 13849-1:2008.
For manually operated mixing head a hold to run control shall enable the ejection of the fluid or a stop
button shall be provided at the mixing head.
4.6 Hazards due to overpressure
The metering and mixing unit shall be designed so that the pressure cannot exceed the maximum
pressure of the components specified by the manufacturer. This shall be achieved by one or more
mechanical devices for example a pressure relief valve or bursting disc. Opening of the device(s) shall
not give rise to emissions to the environment. This may be achieved for example by the relief valve
being vented into a vessel to contain any liquid released.
The hydraulic systems shall be designed according to EN ISO 4413:2010.
The pneumatic systems shall be designed according to EN ISO 4414:2010.
4.7 Burning hazards due to elevated temperatures
Manually operated mixing heads where the temperature of the surface can exceed 50°C shall be
provided with handles.
The temperature of the handles shall not exceed the limits set by EN ISO 13732-1:2008. These handles
shall be so designed that it is impossible for the operator to touch the mixing head while holding them.
The accessible parts that can reach high temperature shall fulfil the limits of EN ISO 13732-1:2008.
Hot moulds shall be marked if their surface temperature exceeds the limit values in
EN ISO 13732-1:2008 and if they cannot be protected against inadvertent contact by means of
insulating material or additional guards.
See 6.1.
4.8 Hazards due to contact with the components or due to the inhalation of gases
hazardous to health
For manual filling of working tanks, see 6.2.
Reaction moulding equipment shall be designed to prevent leakage (e.g. using compatible gasket in
relation to the components). If any leakage occurs, this shall be located easily. See 6.2.
Reaction moulding equipment shall be designed to allow an exhaust ventilation system to be
positioned; see 6.2.
For contact due to splashing, see 6.2.
4.9 Contact reactions hazards due to incorrect connection of hoses
Hoses and their connection points shall be unambiguously and permanently marked. See also 6.1.
4.10 Hazards due to neglect of ergonomic principles
The machine shall be designed by taking into account the ergonomic design principles of
EN 614-1:2006+A1:2009 and EN 614-2:2000+A1:2008.
See 6.2.
4.11 Electrical hazards
Electrical equipment shall be in accordance with EN 60204-1:2006.
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4.12 Emergency stop
Emergency stop function shall be in accordance with EN ISO 13850:2008.
Actuation of any emergency stop actuator shall stop all equipment except exhaust systems, if any.
All emergency stops shall conform to category 0 or 1 of EN ISO 13850:2008.
4.13 Hazards generated by noise
4.13.1 Noise reduction at source by design
The main sources of noise on reaction moulding machines are:
— the hydraulic system;
— the metering pumps;
— the pneumatic system, e.g. exhaust of air.
Reaction moulding machines shall be designed and constructed so that risks resulting from the
emission of airborne noise are reduced to the lowest level, taking account of technical progress and the
availability of means of reducing noise, in particular at source (see, for example, EN ISO 11688-1:2009).
NOTE Noise generation mechanisms are described in EN ISO 11688-2:2000.
For the hydraulic system and metering pumps noise reduction shall be achieved by selecting low noise
emission components.
4.13.2 Noise reduction by protective measures
For the hydraulic system and metering pumps, additional noise reduction can be achieved by partial or
complete enclosure.
Noise reduction for the pneumatic system shall be achieved by the application of vent silencers.
See 6.2.
5 Verification of the safety requirements and/or protective/risk reduction
measures
Verification of the safety requirements and/or measures shall be undertaken as shown in Table 1.
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Table 1 — Verification methods
Clause / Subclause Verification methods References
Visual Measurement Functional Design
inspection test validation
Calculation
4.2 Fixed guard x x x EN 953:1997+A1:2009
EN ISO 13857:2008
4.2 Interlocking guards x x x x EN 953:1997+A1:2009
with and without guard
EN ISO 13855:2010
locking
EN ISO 13857:2008
EN ISO 13849-1:2008
Electro-sensitive x x x x EN 61496–1:2013
protective equipment
Pressure sensitive x x x x EN ISO 13856-1:2013
protective device
Hold-to-run controls x x EN ISO 13849-1:2008
Two-hand controls x x x x EN 574:1996+A1:2008
EN ISO 13855:2010
Laser scanners x x x x EN 61496–1:2013
Mode selector x x x
Maximum speed x x x x
4.3 Instability x x
4.4 Whiplash of hoses x x x EN 953:1997+A1:2009
Fixed guards EN ISO 13857:2008
Fastening x x x x
Tearing prevention x x
Supporting mixing head x
4.5 Fluid eje
...
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