SIST EN 12621:2025

Machinery for supply and circulation of liquid coating materials - Safety requirements

This document deals with all significant hazards, hazardous situations and events which are relevant to machinery for supply and circulation of liquid coating material, when used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse.
See Annex A for significant hazards.
Together with this document, EN 50050 1:2013, EN 50059:2025, EN 50176:2025 or EN 50348:2010 give requirements for electrostatic machinery for supply and circulation of liquid coating material.
The specific significant risks related to the use of machinery for supply and circulation of liquid coating material with foodstuffs and pharmaceutical products are not dealt with in this document.
Interfaces to connected machinery and systems are given in Figure 1, to specify the limit of the machinery for supply and circulation of liquid coating material.
[Figure 1]
Figure 1 - Limits of the machinery
This document does not apply to:
-   pressure related hazards of equipment classified as higher than category 1 of Directive 2014/68/EU Article 13;
NOTE 1   For equipment of higher category than category 1 of Directive 2014/68/EU, see EN 13445 (all parts) and EN 13480 (all parts).
-   machinery for the supply of powder coating material;
-   machinery for coating material recycling;
-   hand-held agitators;
-   agitators of more than 3 kW electrical power supply;
-   offline heating systems;
-   supply systems for CO2 shot-blasting machinery;
-   equipment used for manufacturing of coating material;
-   coating material packaging units (drums, containers, etc.).
This document is not applicable to machinery for supply and circulation of liquid coating material manufactured before the date of its publication.

Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe - Sicherheitsanforderungen

Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die für Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe bei bestimmungsgemäßer Verwendung und unter den vom Hersteller vorgesehenen Betriebsbedingungen, einschließlich vernünftigerweise vorhersehbarer Fehlanwendungen relevant sind.
Siehe Anhang A für signifikante Gefährdungen.
Zusammen mit diesem Dokument, geben EN 50050 1:2013, EN 50059:2025, EN 50176:2025, oder EN 50348:2010 Anforderungen für elektrostatische Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe.
Die spezifischen signifikanten Risiken im Zusammenhang mit der Verwendung von Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe mit Lebensmitteln und pharmazeutischen Produkten werden in diesem Dokument nicht behandelt.
Schnittstellen zu angeschlossenen Maschinen und Systemen sind in Bild 1 dargestellt, um die Grenzen der Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe festzulegen.
[Bild 1]
Bild 1 - Grenzen der Maschine
Dieses Dokument ist nicht anzuwenden für:
-   druckbedingte Gefahren von Geräten, die höher als in Kategorie 1 der Richtlinie 2014/68/EU Artikel 13 eingestuft sind;
ANMERKUNG 1   Für Geräte einer höheren Kategorie als Kategorie 1 der Richtlinie 2014/68/EU, siehe EN 13445 (alle Teile) und EN 13480 (alle Teile).
-   Maschinen für die Versorgung mit Pulverbeschichtungsstoffen;
-   Maschinen für die Wiederaufarbeitung von Beschichtungsstoff;
-   handgehaltene Rührwerke;
-   Rührwerke mit einer elektrischen Leistung von mehr als 3 kW;
-   externe Heizsysteme;
-   Versorgungssysteme für CO2-Strahlanlagen;
-   Ausrüstung für die Herstellung von Beschichtungsstoffen;
-   Verpackungseinheiten für Beschichtungsstoffe (Fässer, Container usw.).
Dieses Dokument gilt nicht für Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe, die vor dem Datum seiner Veröffentlichung hergestellt wurden.

Installations d'alimentation et de circulation de produits de revêtement liquide - Prescriptions de sécurité

Le présent document traite tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs spécifiques aux installations d'alimentation et de circulation de produits de revêtement liquides, lorsqu'elles sont utilisées normalement et dans les conditions prévues par le fabricant, y compris tout mauvais usage raisonnablement prévisible.
Voir l’Annexe A pour les phénomènes dangereux significatifs.
Avec le présent document, l’EN 50050 1:2013, l’EN 50059:2025, l’EN 50176:2025 ou l’EN 50348:2010 donne des exigences pour les installations électrostatiques pour l’alimentation et la circulation de produits de revêtement liquides.
Les risques significatifs spécifiques relatifs à l'utilisation d’installations d'alimentation et de circulation de produits de revêtement liquides avec des aliments et des produits pharmaceutiques ne sont pas traités dans le présent document.
Les interfaces avec les machines et systèmes connectés sont indiquées à la Figure 1, afin de spécifier les limites de l’installation d'alimentation et de circulation de produits de revêtement liquides.
[Figure 1]
Figure 1 - Limites de l’installation
Le présent document ne s’applique pas :
-   aux phénomènes dangereux liés à la pression d'équipements classés dans une catégorie supérieure à la catégorie 1 de la Directive 2014/68/UE Article 13 ;
NOTE 1   Pour les équipements d'une catégorie supérieure à la catégorie 1 de la Directive 2014/68/UE, voir l'EN 13445 (toutes les parties) et l'EN 13480 (toutes les parties).
-   aux installations d'alimentation de produits de revêtements en poudre ;
-   aux installations pour le recyclage de produits de revêtement ;
-   aux agitateurs manuels ;
-   aux agitateurs avec une alimentation électrique de plus de 3 kW ;
-   aux systèmes de chauffage autonomes ;
-   aux systèmes d'alimentation pour les installations de projection de CO2 ;
-   aux équipements utilisés pour la fabrication de produits de revêtement ;
-   aux unités de conditionnement du produit de revêtement (bidons, conteneurs, etc.).
Le présent document ne s'applique pas aux installations d’alimentation et de circulation de produits de revêtement liquides construites avant la date de sa publication.

Naprave za dovod in obtok tekočih premaznih materialov - Varnostne zahteve

General Information

• Status: Published
• Publication Date: 09-Jun-2025
• ICS: 87.100 - Paint coating equipment
• Technical Committee: VSN - Safety of machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Feb-2025
• Due Date: 26-Apr-2025
• Completion Date: 10-Jun-2025
• Directive: 2006/42/EC - 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)
• Directive: 2014/34/EU - Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Mandate: M/596 - [C(2023)4798] Commission Implementing Decision of 20.7.2023 on a standardisation request as regards equipment and protective systems intended for use in potentially explosive atmospheres in support of Directive 2014/34/EU (ATEX) of the European Parliament and of the Council
• Mandate: M/BC/CEN/92/46 - Standardization mandate assigned to CEN/CENELEC concerning equipment and protective systems intended for use in potentially explosive atmospheres
• Ref Project: EN 12621:2025 - Machinery for supply and circulation of liquid coating materials - Safety requirements

Relations

• Revised: SIST EN 12621:2006+A1:2010 - Machinery for the supply and circulation of coating materials under pressure - Safety requirements
• Effective Date: 17-Jul-2019

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2025
Naprave za dovod in obtok tekočih premaznih materialov - Varnostne zahteve
Machinery for supply and circulation of liquid coating materials - Safety requirements
Förder- und Umlaufanlagen für flüssige Beschichtungsstoffe - Sicherheitsanforderungen
Installations d'alimentation et de circulation de produits de revêtement liquide -
Prescriptions de sécurité
Ta slovenski standard je istoveten z: EN 12621:2025
ICS:
87.100 Oprema za nanašanje Paint coating equipment
premazov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12621
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2025
EUROPÄISCHE NORM
ICS 87.100 Supersedes EN 12621:2006+A1:2010
English Version
Machinery for supply and circulation of liquid coating
materials - Safety requirements
Installations d'alimentation et de circulation de Förder- und Umlaufanlagen für flüssige
produits de revêtement liquide - Exigences de sécurité Beschichtungsstoffe - Sicherheitsanforderungen
This European Standard was approved by CEN on 22 December 2024.

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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12621:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction. 5
1 Scope . 6
2 Normative references . 8
3 Terms, definitions and symbols . 10
3.1 Terms and definitions. 10
3.2 Symbols . 12
4 Safety requirements and/or protective/risk reduction measures . 12
4.1 Mechanical . 12
4.1.1 Crushing, drawing in or impact . 12
4.1.2 Parts under pressure . 14
4.1.3 Slipping . 15
4.2 Electrical . 16
4.2.1 General . 16
4.2.2 External influences on the electrical equipment . 16
4.3 Temperature . 16
4.3.1 Hot surfaces . 16
4.3.2 Thermal stability . 17
4.3.3 Heating system . 17
4.4 Noise . 17
4.5 Hazardous substances . 18
4.5.1 General . 18
4.5.2 Health. 20
4.5.3 Fire . 20
4.5.4 Explosion . 21
4.6 Failure of energy supply . 25
4.7 Control system . 25
5 Verification of safety requirements and/or protective/risk reduction measures. 27
6 Information for use . 34
6.1 General . 34
6.2 Instructions for operation . 34
6.3 Instructions for maintenance . 35
6.4 Instructions for installation . 35
6.4.1 General . 35
6.4.2 Supply hoses for application equipment and their fittings . 36
6.4.3 Ventilation . 36
6.5 Marking . 36
6.5.1 Warning signs . 36
6.5.2 Type plate . 36
6.6 Sales literature . 36
Annex A (informative) List of significant hazards . 37
Annex B (informative) Energy-efficiency and reduction of environmental impact . 40
B.1 General . 40
B.2 Machinery. 40
Annex C (informative) Significant technical changes between this European Standard and
the previous edition . 42
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 44
Annex ZB (informative) Relationship between this European Standard and the essential
Health and Safety Requirements of Directive 2014/34/EU aimed to be covered . 47
Bibliography . 50
European foreword
This document (EN 12621:2025) has been prepared by Technical Committee CEN/TC 271 “Surface
treatment equipment - safety”, 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 August 2025, and conflicting national standards shall be
withdrawn at the latest by August 2026.
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 12621:2006+A1:2010.
See Annex C, Table C.1 for the technical modifications which have been made in comparison with
EN 12621:2006+A1:2010.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annexes ZA and ZB, which are an integral part
of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the United
Kingdom.
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);
— service providers, e.g. for maintenance (small, medium and large enterprises).
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.
1 Scope
This document deals with all significant hazards, hazardous situations and events which are relevant to
machinery for supply and circulation of liquid coating material, when used as intended and under the
conditions foreseen by the manufacturer, including reasonably foreseeable misuse.
See Annex A for significant hazards.
Together with this document, EN 50050-1:2013, EN 50059:2025, EN 50176:2025 or EN 50348:2010 give
requirements for electrostatic machinery for supply and circulation of liquid coating material.
The specific significant risks related to the use of machinery for supply and circulation of liquid c
...