SIST EN 16985:2019

Spray booths for organic coating material - Safety requirements

This European Standard deals with all significant hazards, hazardous situations and hazardous events relevant to spray booths for the application of organic liquid and powder coating materials, when they are used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse.
See Annex A for significant hazards.
Interfaces between spray booths and other machinery used in coating application are given in Figure 1.
The specific significant risks related to the use of this machinery with foodstuff and pharmaceutical products are not dealt with in this standard.
The specific significant risks related to drying operation of combined spraying and drying booths are not dealt with in this standard, but in EN 1539:2015.
This European Standard is not applicable to:
-   spaces for application of organic coating material consisting only of an extraction wall;
-   platforms attached to spray booths (e.g. for touch-up jobs);
-   flock booths (see EN 50223:2015);
-   spray booths with airflow from vertical inlet to horizontal extraction or from horizontal inlet to vertical extraction.
This European Standard is not applicable to machinery manufactured before the date of its publication as European Standard.

Lackierkabinen für organische Beschichtungsstoffe - Sicherheitsanforderungen

Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse von Lackierkabinen zur Applikation von organischen flüssigen Beschichtungsstoffen und Beschichtungspulvern, die bestimmungsgemäß und unter vom Hersteller vorgesehenen Bedingungen verwendet werden. Vernünftigerweise vorhersehbare Fehlanwendungen sind dabei eingeschlossen.
Die signifikanten Gefährdungen sind in Anhang A aufgelistet.
Bild 1 zeigt Schnittstellen zwischen Lackierkabinen und anderen Maschinen die für die Applikation von Beschichtungsstoffen verwendet werden..

Cabines d'application de produits de revêtement organiques - Prescriptions de sécurité

La présente Norme européenne traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs spécifiques aux cabines d’application par pulvérisation pour les produits de revêtements organiques liquides et poudre, lorsqu'elles sont utilisées normalement et dans les conditions prévues par le fabricant, y compris tout mauvais usage raisonnablement prévisible.
Pour les phénomènes dangereux, voir l’Annexe A.
Les interfaces entre les cabines d’application par pulvérisation et les autres équipements utilisés pour l'application de revêtement sont indiquées à la Figure 1.
Les risques significatifs spécifiques relatifs à l’utilisation de ces machines pour les produits pharmaceutiques et alimentaires ne sont pas traités dans la présente norme.
Les risques significatifs spécifiques relatifs aux opérations de séchage des cabines combinées d’application par pulvérisation et de séchage ne sont pas traités dans la présente norme, mais dans l’EN 1539:2015.
La présente Norme européenne ne s’applique pas aux :
-   espaces pour l’application de produits de revêtement organiques constitué uniquement d'une paroi d'extraction ;
-   plates-formes attachées aux cabines d’application par pulvérisation (par exemple, pour les travaux de retouche) ;
-   cabine de projection de flock (voir l'EN 50223:2015) ;
-   cabines d’application par pulvérisation avec un flux d’air d’une ouverture verticale vers une extraction horizontale ou d’une ouverture horizontale vers une extraction verticale.
La présente Norme européenne n’est pas applicable aux machines fabriquées avant la date de sa publication en tant que Norme européenne.

Kabine za nanašanje organskih premazov - Varnostne zahteve

Ta evropski standard opisuje vsa večja tveganja, nevarne razmere in nevarne dogodke (glej točko 4) za kabine za nanašanje organskih tekočih in praškastih premazov, kadar se uporabljajo v skladu s svojim namenom in pod pogoji, ki jih predvideva proizvajalec, vključno s pogoji pričakovane nepravilne uporabe.
OPOMBA 1:   Za klasifikacijo kabin glej točko 3.
OPOMBA 2:   Za elemente kabin glej točko 3.
Vmesniki med kabinami in drugo opremo, ki se uporablja za nanašanje premazov, so prikazani na sliki 1.
Ta standard ne zajema posebnih znatnih tveganj, povezanih z uporabo teh strojev z živili in farmacevtskimi izdelki.
Ta evropski standard se ne uporablja za:
–   območja nanašanja (prostori za nanašanje organskih premazov, ki so omejeni samo z eno stransko steno, ki se uporablja za odvajanje izpustov pri prezračevanju);
–   platforme, pritrjene na kabine (npr. za nanašanje premazov z dotikom);
–   stene kabin, če so del objekta;
OPOMBA:   Za integracijo sten v kabino lahko veljajo nacionalni predpisi.
–   kabine za nanos kosmičev (glej EN 50223).
Ta evropski standard se ne uporablja za stroje, ki so bili izdelani, preden je bil objavljen kot standard EN.

General Information

• Status: Published
• Public Enquiry End Date: 04-Jun-2016
• Publication Date: 07-Apr-2019
• ICS: 87.100 - Paint coating equipment
• Technical Committee: VSN - Safety of machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Dec-2018
• Due Date: 18-Feb-2019
• Completion Date: 08-Apr-2019
• 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)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 16985:2018 - Spray booths for organic coating material - Safety requirements

Relations

• Replaces: SIST EN 12215:2005+A1:2009 - Coating plants - Spray booths for application of organic liquid coating materials - Safety requirements
• Effective Date: 11-Dec-2018
• Replaces: SIST EN 12981:2005+A1:2009 - Coating plants - Spray booths for application of organic powder coating material - Safety requirements
• Effective Date: 11-Dec-2018
• Replaces: SIST EN 13355:2005+A1:2009 - Coating plants - Combined booths - Safety requirements
• Effective Date: 11-Dec-2018

Overview

SIST EN 16985:2019 / EN 16985:2018 is the European safety standard for spray booths used to apply organic coating materials (liquid and powder). It covers the significant hazards, hazardous situations and events relevant to spray booth design, installation, operation and maintenance when used as intended and under reasonably foreseeable misuse. The standard focuses on protecting people, equipment and premises from mechanical, electrical, thermal, chemical, fire and explosion risks. (See Annex A for a hazard overview and Figure 1 for interfaces with other coating machinery.)

Key topics and technical requirements

The standard sets out requirements, measures and verification methods across topics including:

• Hazard identification and risk reduction - comprehensive list of significant hazards (Annex A).
• Mechanical safety - moving parts, falling objects, working heights, slipping risks.
• Electrical, thermal and noise controls - safe installation and mitigation measures.
• Chemical exposure and inhalation - controls for manual and automatic application of organic liquids and powders.
• Fire protection - booth construction, filter media, fire detection and extinguishing equipment.
• Explosion protection - specific provisions for liquid solvent and powder coating booths, hazardous area classification (Annex B).
• Safety devices and control systems - interlocks, shutdowns and protective controls.
• Trapping and ergonomics - access, working areas, maintenance considerations.
• Verification and measurement - methods for verifying requirements including calculated concentrations (Annex C) and airflow velocity measurement procedures (Annex D).
• User information and marking - instructions for installation, operation, maintenance and mandatory marking details.
• Energy and environmental aspects - guidance on energy efficiency and emissions (Annex F).

Note: the standard does not address specific risks for food or pharmaceutical uses, nor the drying operation of combined spray/drying booths (see EN 1539:2015). It also excludes certain booth types (e.g., extraction-wall-only spaces, platforms attached to booths, flock booths per EN 50223:2015, and some airflow configurations).

Practical applications - who uses this standard

EN 16985 is essential for:

• Manufacturers and designers of spray booths and related ventilation/filter systems.
• Integrators and system installers ensuring safe interfaces between booths and upstream/downstream machinery.
• Plant safety engineers and maintenance teams for risk assessments, preventive maintenance and safe work procedures.
• Compliance officers, certification bodies and inspectors performing conformity assessment and verification.
• Purchasers and project managers specifying safe equipment and contractual safety requirements.

Typical uses: design reviews, hazard classification, specification of fire/explosion protection measures, verification of airflow and pollutant concentrations, operator manuals and marking.

Related standards

• EN 1539:2015 (drying operations in combined booths)
• EN 50223:2015 (flock booths)
• Supersedes EN 12215, EN 12981, EN 13355 series (as noted in the EN foreword)

Keywords: EN 16985, SIST EN 16985:2019, spray booths safety, organic coating, powder coating, liquid coating, explosion protection, fire detection, airflow measurement, hazardous zones.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2019
1DGRPHãþD
SIST EN 12215:2005+A1:2009
SIST EN 12981:2005+A1:2009
SIST EN 13355:2005+A1:2009
Kabine za nanašanje organskih premazov - Varnostne zahteve
Spray booths for organic coating material - Safety requirements
Lackierkabinen für organische Beschichtungsstoffe - Sicherheitsanforderungen
Cabines d'application de produits de revêtement organiques - Prescriptions de sécurité
Ta slovenski standard je istoveten z: EN 16985:2018
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 16985
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2018
EUROPÄISCHE NORM
ICS 87.100 Supersedes EN 12215:2004+A1:2009, EN
12981:2005+A1:2009, EN 13355:2004+A1:2009
English Version
Spray booths for organic coating material - Safety
requirements
Cabines d'application par pulvérisation de produits de Lackierkabinen für organische Beschichtungsstoffe -
revêtement organiques - Prescriptions de sécurité Sicherheitsanforderungen
This European Standard was approved by CEN on 15 March 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16985:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 6
1 Scope . 8
2 Normative references . 9
3 Terms, definitions, variables and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Variables . 15
3.3 Abbreviations . 17
4 Safety requirements and/or -measures . 18
4.1 General. 18
4.2 Mechanical . 18
4.2.1 Moving or rotating elements . 18
4.2.2 Falling objects . 18
4.2.3 Height from the ground . 19
4.2.4 Slippery surface . 19
4.3 Electrical . 19
4.4 Thermal . 19
4.5 Noise . 19
4.6 Radiation . 20
4.7 Contact with and inhalation of hazardous material . 21
4.7.1 General. 21
4.7.2 Automatic application . 22
4.7.3 Manual application . 22
4.8 Fire . 26
4.8.1 General. 26
4.8.2 Spray booth construction . 27
4.8.3 Filter media . 27
4.8.4 Fire detection . 27
4.8.5 Fire extinguishing equipment . 28
4.9 Explosion . 28
4.9.1 General. 28
4.9.2 Spray booth for liquid coating material. 29
4.9.3 Spray booth for powder coating material . 31
4.10 Safety devices and control systems . 34
4.11 Trapping . 36
4.11.1 General. 36
4.11.2 Manual spray booth . 36
4.11.3 Automatic spray booth . 37
4.12 Ergonomics . 37
4.12.1 General. 37
4.12.2 Access . 37
4.12.3 Working area . 37
4.12.4 Climatic environment . 37
4.12.5 Luminous environment . 38
4.12.6 Maintenance . 38
4.13 Environment in which the machinery is used . 38
5 Verification of the safety requirements . 38
6 Information for use . 44
6.1 General . 44
6.2 Instruction handbook . 44
6.2.1 General . 44
6.2.2 Information related to installation . 45
6.2.3 Information related to operation . 46
6.2.4 Information related to maintenance . 46
6.3 Marking . 47
Annex A (informative) Hazards . 49
Annex B (informative) Examples of classification of hazardous zones . 53
B.1 Example 1 . 53
B.2 Example 2 . 54
B.3 Example 3 . 56
B.4 Example 4 . 58
B.5 Example 5 . 60
B.6 Example 6 . 62
Annex C (normative) Calculated average concentration of flammable substances . 65
C.1 General . 65
C.2 Spray booths for liquid coating material containing organic solvents . 65
C.2.1 General . 65
C.2.2 Example for the calculation of concentration of flammable substances on the basis of
a given air flow velocity (manual spray booth) . 65
C.2.3 Example for the calculation of required minimum fresh air flow (automatic spray
booth) . 66
C.3 Spray booths for organic powder coating material. 67
C.3.1 General . 67
C.3.2 Example for the calculation of coating powder concentration . 67
C.3.3 Example for the calculation of maximum coating powder input . 68
C.4 Filters for powder coating booths . 69
C.4.1 General . 69
C.4.2 Example for the calculation of coating powder concentration in the clean air part of
the filter . 69
Annex D (normative) Air flow velocity measurement . 71
D.1 Measurement equipment . 71
D.2 Measurement procedure . 71
D.2.1 Measurement conditions . 71
D.2.2 Air flow velocity components . 71
D.3 Measurement points . 72
D.3.1 Vertically ventilated spray booth (liquid and powder, internal working area) . 72
D.3.2 Vertically ventilated spray booth with designated workpiece (liquid and powder,
internal working area). 73
D.3.3 Vertically ventilated segmented spray booth . 73
D.3.4 Horizontally ventilated spray booth (liquid and powder) . 75
D.3.5 Openings of a spray booth . 76
D.3.6 Summary of air flow velocity parameters . 76
Annex E (informative) Ignitability of water-based paint . 79
Annex F (normative) Energy-efficiency and reduction of environmental impact . 80
F.1 General. 80
F.2 Spray booths for liquid coating material. 80
F.2.1 Acquisition . 80
F.2.2 Production . 80
F.2.3 Use . 80
F.2.3.1 Input . 80
F.2.3.1.1 Material . 80
F.2.3.1.2 Water . 80
F.2.3.1.3 Energy . 81
F.2.3.2 Output . 81
F.2.3.2.1 Emissions to air . 81
F.2.3.2.2 Waste . 81
F.2.3.2.3 Noise . 81
F.2.4 End of life . 82
F.3 Spray booths for powder coating . 82
F.3.1 Acquisition . 82
F.3.2 Production . 82
F.3.3 Use . 82
F.3.3.1 Input . 82
F.3.3.2 Output . 82
F.3.3.2.1 Emissions to air . 82
F.3.3.2.2 Waste . 82
F.3.3.2.3 Noise . 82
F.3.4 End of Life . 83
Annex G (informative) Examples for safety related controls . 84
G.1 General. 84
G.2 Interlocking of forced ventilation system with interface to spray application . 84
Annex H (informative) Determination of the spray booth clearance time using smoke . 86
H.1 General . 86
H.2 Procedure . 86
Annex I (informative) Estimation of the spray booth purge time . 87
I.1 General . 87
I.2 Example . 87
Annex J (informative) Examples for ventilation of spray booths with working pits . 89
J.1 Ventilation of working pits . 89
J.2 Measurement of air flow velocity in working pits . 93
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 95
Bibliography . 98

European foreword
This document (EN 16985:2018) 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 June 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
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 12215:2004+A1:2009, EN 12981:2005+A1:2009 and
EN 13355:2004+A1:2009.
In comparison with the previous edition the following technical modifications have been made:
a) The 3 European Standards EN 12215:2004+A1:2009, EN 12981:2005+A1:2009 and
EN 13355:2004+A1:2009 have been merged into this European standard;
b) The scope has not been changed, but the limits of a spray booth have been defined by specifying the
interfaces to ancillary machinery, to clarify the scope;
c) 4.2.2 Falling objects, has been introduced;
d) 4.2.3 Height from the ground, has been introduced;
e) 4.7 Contact with and inhalation of hazardous material, has been revised;
f) 4.7.3.3.4 Segmented spray booths, has been introduced;
g) 4.8 Fire, has been revised;
h) 4.9 Explosion, has been revised;
i) 4.10 Safety devices and control systems, has been revised;
j) 4.11 Trapping, has been introduced;
k) 4.12 Ergonomics, has been introduced;
l) 4.13 Environment in which the machinery is used, has been introduced;
m) The list of hazards has been moved to new Annex A (informative);
n) Examples of classification of hazardous zones have been moved to new Annex B (informative);
o) Calculations for explosive atmosphere have been moved to new Annex C (normative);
p) Calculation for powder filters has been introduced (Annex C.4);
q) Requirements for air flow velocity measurement have been clarified and moved to new Annex D
(normative);
r) Information on ignitability of water-based paint has been introduced in new Annex E (informative);
s) Annex F (normative) on Energy-efficiency and reduction of environmental impact has been
introduced;
t) Annex G (informative) with examples for safety related controls has been introduced;
u) Annex H (informative) on a procedure for the determination of the spray booth clearance time using
smoke has been introduced;
v) Annex I (informative) with an example for the estimation of the spray booth purge time has been
introduced;
w) Annex J (informative) with examples for ventilation of spray booths with working pits has been
introduced.
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 the EU Directive 2006/42/EC.
For relationship with the EU Directive, see informative Annex ZA, which is an integral part of this
document.
NOTE Although a spray booth, as an integral whole, formally does not fall under the scope of the ATEX Directive
2014/34/EU, the standard is based upon a fundamental risk analysis according to this directive.
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, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
1 Scope
This European Standard deals with all significant hazards, hazardous situations and hazardous events
relevant to spray booths for the application of organic liquid and powder coating materials, when they
are used as intended and under the conditions foreseen by the manufacturer, including reasonably
foreseeable misuse.
See Annex A for significant hazards.
Interfaces between spray booths and other machinery used in coating application are given in Figure 1.

Key
spray booth
1 water output connector
2 connector to electric power supply
3 water input connector
4 connector to pressurized air supply
5 interface of control system
6 fresh air supply
7 connector to exhaust air treatment system
8 connector to RPD air supply
9 booth cleaning system connector
10 connection to external fire extinguishing system
11 connection to lifting device
Figure 1 — Interfaces of a spray booth to ancillary machinery
The specific significant risks related to the use of this machinery with foodstuff and pharmaceutical
products are not dealt with in this standard.
The specific significant risks related to drying operation of combined spraying and drying booths are not
dealt with in this standard, but in EN 1539:2015.
This European Standard is not applicable to:
• spaces for application of organic coating material consisting only of an extraction wall;
• platforms attached to spray booths (e.g. for touch-up jobs);
• flock booths (see EN 50223:2015);
• spray booths with airflow from vertical inlet to horizontal extraction or from horizontal inlet to
vertical extraction.
This European Standard is not applicable to machinery manufactured before the date of its publication
as European Standard.
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 525:2009, Non-domestic direct gas-fired forced convection air heaters for space heating not exceeding
a net heat input of 300 kW
EN 547-1:1996+A1:2008, Safety of machinery — Human body measurements — Part 1: Principles for
determining the dimensions required for openings for whole body access into machinery
EN 746-1:1997+A1:2009, Industrial thermoprocessing equipment — Part 1: Common safety requirements
for industrial thermoprocessing equipment
EN 746-2:2010, Industrial thermoprocessing equipment — Part 2: Safety requirements for combustion and
fuel handling systems
EN 1127-1:2011, Explosive atmospheres — Explosion prevention and protection — Part 1: Basic concepts
and methodology
EN 1539:2015, Dryers and ovens, in which flammable substances are released — Safety requirements
EN 12198-1:2000+A1:2008, Safety of machinery — Assessment and reduction of risks arising from
radiation emitted by machinery — Part 1: General principles
EN 12198-2:2002+A1:2008, Safety of machinery — Assessment and reduction of risks arising from
radiation emitted by machinery — Part 2: Radiation emission measurement procedure
EN 12464-1:2011, Light and lighting — Lighting of work places — Part 1: Indoor work places
EN 14373:2005, Explosion suppression systems
EN 14462:2015, Surface treatment equipment — Noise test code for surface treatment equipment including
its ancillary handling equipment — Accuracy grades 2 and 3
EN 14491:2012, Dust explosion venting protective systems
EN 14986:2017, Design of fans working in potentially explosive atmospheres
EN 15089:2009, Explosion isolation systems
EN 16447:2014, Explosion isolation flap valves
EN 50050-1:2013, Electrostatic hand-held spraying equipment — Safety requirements — Part 1: Hand-
held spraying equipment for ignitable liquid coating materials
EN 50050-2:2013, Electrostatic hand-held spraying equipment — Safety requirements — Part 2: Hand-
held spraying equipment for ignitable coating powder
EN 50176:2009, Stationary electrostatic application equipment for ignitable liquid coating material —
Safety requirements
EN 50177:2009, Stationary electrostatic application equipment for ignitable coating powders — Safety
requirements
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005)
EN 60519-1:2015, Safety in installations for electroheating and electromagnetic processing — Part 1:
General requirements (IEC 60519-1:2015)
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)
EN 61496-2:2013, Safety of machinery — Electro-sensitive protective equipment — Part 2: Particular
requirements for equipment using active opto-electronic protective devices (AOPDs) (IEC 61496-2:2013)
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 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)
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 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)
EN ISO 14122-1:2016, Safety of machinery — Permanent means of access to machinery — Part 1: Choice
of fixed means and general requirements of access (ISO 14122-1:2016)
EN ISO 14122-2:2016, Safety of machinery — Permanent means of access to machinery — Part 2: Working
platforms and walkways (ISO 14122-2:2016)
EN ISO 14122-3:2016, Safety of machinery — Permanent means of access to machinery — Part 3: Stairs,
stepladders and guard-rails (ISO 14122-3:2016)
EN ISO 14122-4:2016, Safety of machinery — Permanent means of access to machinery — Part 4: Fixed
ladders (ISO 14122-4:2016)
EN ISO 19353:2016, Safety of machinery — Fire prevention and fire protection (ISO 19353:2015)
EN ISO 80079-36:2016, Explosive atmospheres — Part 36: Non-electrical equipment for explosive
atmospheres — Basic method and requirements (ISO 80079-36:2016)
3 Terms, definitions, variables and abbreviations
3.1 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
3.1.1
spray booth
rigid structure, limited by walls, forming a partially or fully enclosed volume for the controlled processing
of spray application of organic coating material
3.1.1.1
spray booth for powder coating material
spray booth designated for the application of powder coating material
3.1.1.2
spray booth for liquid coating material
spray booth designated for the application of liquid coating material
3.1.1.3
manual spray booth
spray booth designated for the manual application of coating material
3.1.1.4
automatic spray booth
spray booth designated for the automated application of coating material
3.1.1.5
segmented spray booth
spray booth with interdependent ventilated zones
3.1.2
forced ventilation
technical ventilation consisting of one or more of the following systems:
• fresh air supply system;
• air recirculation system;
• air exhaust system
3.1.3
exhaust air cleaning system
system which removes overspray from the exhaust air
Note 1 to entry: Solvents are not removed from the exhaust air by the exhaust air cleaning system.
3.1.4
powder recovery system
system which separates powder overspray from the exhaust air
3.1.4.1
open powder recovery system
powder separator open to the coating area
3.1.4.2
enclosed powder recovery system
enclosed powder separator (e.g. filter and/or cyclone) connected by ductwork to the coating area of the
spray booth
3.1.5
working area
area of the spray booth, designated as operator working position for manual coating operation
3.1.5.1
internal working area
working area inside of a spray booth (see Figure 2)
Key
working area
Figure 2 — Internal working area
3.1.5.2
working pit
internal working area located below floor level (see Figure 3)
Note 1 to entry: Working pits are used e.g. for the coating of heavy goods vehicle chassis.

Key
working area
Figure 3 — Pit working area
3.1.5.3
external working area
working area outside of a spray booth (see Figure 4)

Key
working area
Figure 4 — External working area
3.1.6
fresh air
air drawn from a clean source inside or outside of the building into the spray booth
3.1.7
clearance time
time required to clear the internal volume of a fully enclosed spray booth from smoke by forced
ventilation
Note 1 to entry: See Annex H.
3.1.8
purge time
time required to achieve a non-hazardous atmosphere in the spray booth after spraying process is
stopped and when ventilation is operating in spraying conditions. Typically, time after which the
concentration of hazardous substances in the spray booth is below exposure limit value
Note 1 to entry: Exposure limit values are subject to national regulation.
3.1.9
back-up filter
filter unit for powder recovery
• located in clean air part downstream of the separator;
• usually fitted with differential pressure monitoring;
• to prevent discharge of powder to the environment
3.1.10
internal volume of spray booth
space limited by the interior walls, plane of the openings, floor and ceiling of the spray booth
3.2 Variables
Variables used in this standard are given in Table 1.
Table 1 — Variables used in this standard
Variable Definition Dimension
A Area of the measurement plane
m
Average concentration of flammable solvents (in air) in the spray
C gm/
Liquid
booth
Average concentration of flammable coating powder (in air) in the
C gm/
Powder
spray booth
Average concentration of flammable coating powder behind filter
C mg /m
Clean
medium
Average concentration of flammable solvents (in air) in the spray %
C
LEL, Liquid
booth as a percentage of LEL
Average concentration of flammable coating powder (in air) in the %
C
LEL, Powder
spray booth as a percentage of LEL
Maximum average concentration (design value) as a percentage of %
C
LEL, max
LEL
Exposure limit value of hazardous substance
C
gm/
LV
Maximum average concentration (design value)
C gm/
max
Average concentration of hazardous material in the spray booth at
Ct gm/
()
time t
Average concentration of hazardous material in the spray booth at
Ct gm/
( )
stop of spray process
Average concentration of hazardous material in the spray booth

gm/
Ct
( )
p
after purge time t is over
p
Average penetration of filter medium (suppliers certificate) %
e
rfm
Recovery efficiency of pre-separator given by manufacturer (e.g. for %

e
s
cyclone typically between 90 % and 95 %)
Transfer efficiency of powder coating process %
e
t
Mass percentage of flammable solvents content in the liquid organic %
k
coating material at spraying conditions
Estimated percentage of flammable solvents evaporated inside the %

k
spray booth. For common spray application the value is 80 %.
Inhomogenity factor taking into account the concentration dimensionless
k
inhomogenity throughout the spray booth and, in particular, the high
concentration between spray gun and workpiece and its vicinity. The
range is from 1 to 5. For common spray application the value is 3. For
highly defined (automatic) spray processes a lower value can be
chosen
Mass percentage of hazardous material content in the liquid organic %
k
coating material at spraying conditions
Estimated percentage of hazardous material emitted inside the spray %
k
booth
m
l Length
Lower explosion limit of solvents mixtures at 293 K. If the component
LEL
gm/
Liquid
parts of the solvents mixtures are known, but the LEL of the mixture
is unknown, then the LEL of the solvent component with the lowest
value should be taken. If the data are not available, then the value of
40 g/m shall be used.
Lower explosion limit of a combustible coating powder-air mixture.
LEL
gm/
Powder
If the data are not available, then the value of 20 g/m shall be used.
g
Quantity of organic coating powder sprayed for coating of one
M
applied
workpiece

Mass flow rate of organic coating powder in the clean air part of the gh/
M
clean
recovery system

Mass flow rate of organic coating powder in the powder laden air part
gh/
M
crude
of the recovery system
 Maximum mass input of flammable liquid coating material sprayed
gh/
M
max, Liquid
per hour

Maximum mass input of flammable coating powder sprayed in the gh/
M
max, Powder
spray booth per hour
g
Quantity of organic coating powder deposited on the workpiece

M
workpiece
Minimum fresh air volume flow required m /h
Q
min
Operational airflow for coating process m /h

Q
op
t Time h
t Start time for determination of purge time dimensionless
t Purge time s
p
v Average air flow velocity m/s
V Internal volume of the spray booth m
w
Width m
3.3 Abbreviations
Abbreviations used in this standard are given in Table 2.
Table 2 — Abbreviations used in this standard
Abbreviation Description
A-L Electrostatic spraying system of type A for liquid coating material (see
EN 50176:2009)
A-P Electrostatic spraying system of type A for powder coating material (see
EN 50177:2009)
B-L Electrostatic spraying system of type B for liquid coating material (see
EN 50176:2009)
B-P Electrostatic spraying system of type B for powder coating material (see
EN 50177:2009)
C-L Electrostatic spraying system of type C for liquid coating material (see
EN 50176:2009)
C-P Electrostatic spraying system of type C for powder coating material (see
EN 50177:2009)
D-L Electrostatic spraying system of type D for liquid coating material (see
EN 50176:2009)
H O Water
IR Infrared
LM Liquid organic phase, mainly consisting of higher glycol esters in mixture with max.
1:1 propanol
ORG Solid organic phase, mainly consisting of binder and pigments
PPE Personal protective equipment
PL Performance level of a safety related control
PLC Programmable logic controller
PL Required Performance level of a safety related control
r
RPD Respiratory protective device
UV Ultraviolet
4 Safety requirements and/or -measures
4.1 General
Spray booths shall comply with the safety requirements and/or protective measures of Clause 4. In
addition, spray booths shall be designed according to the principles of EN ISO 12100:2010 for relevant
but not significant hazards (for instance sharp edges), which are not dealt with by this standard.
The safety requirements defined in this standard override the requirements defined for minimizing
energy usage and environmental impact (see Annex F).
4.2 Mechanical
4.2.1 Moving or rotating elements
Hazards by shearing, crushing or drawing-in by movements of machine parts and equipment shall be
prevented by design. Access to dangerous moving parts shall be prevented. This can be achieved by
• fitting fixed guards
and/or
• fitting one of the following devices interlocked with the hazardous movement
• movable guards, see EN ISO 14120:2015;
• active opto-electronic protective devices, see EN 61496-1:2013 and EN 61496-2:2013;
• pressure sensitive protective devices (mats and floors), see EN ISO 13856-1:2013.
NOTE 1 For fans fixed guards have been proven to be effective.
Fixed guards that shall be demounted by the user, e.g. for maintenance and cleaning purposes, shall be
fitted with fixing elements remaining attached to the machine or to the guard when the guard is removed,
e.g. captive screws. See also 6.2.4 l).
If access for maintenance or other reasons is foreseen to be frequent, i.e. more than once per shift,
interlocked movable guards shall be used. If it is possible to reach moving parts before they have stopped,
the guard shall be interlocked with guard locking. See EN ISO 14119:2013.
Requirements for safety functions are given in Table 5 (see 4.10).
Safety distances to dangerous moving parts shall be ensured (see EN ISO 13857:2008).
NOTE 2 For conveyors see EN 619:2002+A1:2010.
NOTE 3 For robots see EN ISO 10218-2:2011.
NOTE 4 For power operated doors for persons see EN 12433-1
...