FprEN 397

SLOVENSKI STANDARD
01-december-2022
Industrijske zaščitne čelade
Industrial protective helmets
Industrieschutzhelme
Casques de protection pour l'industrie
Ta slovenski standard je istoveten z: prEN 397
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 397
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2022
ICS 13.340.20 Will supersede EN 397:2012+A1:2012
English Version
Industrial protective helmets
Casques de protection pour l'industrie Industrieschutzhelme
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 158.
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, 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.
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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 397:2022 E
worldwide for CEN national Members.

prEN 397:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 8
4.1 Physical requirements . 8
4.2 Performance requirements . 10
5 Test methods . 15
5.1 Samples . 15
5.2 Conditioning for testing . 19
5.3 Head forms . 21
5.4 Penetration of the shell via ventilation holes . 21
5.5 Sizing . 22
5.6 Ergonomics . 22
5.7 Shock absorption . 23
5.8 Resistance to penetration . 26
5.9 Retention system strength release . 26
5.10 Retention system effectiveness . 26
5.11 Resistance to ignition . 28
5.12 Molten metal splash . 29
5.13 Electrostatic properties . 29
5.14 Enhanced visibility . 31
5.15 Determination of resistance to off-crown penetration . 31
6 Marking . 32
6.1 General. 32
6.2 General markings . 32
7 Manufacturer’s instructions and information . 33
7.1 General. 33
7.2 For electrostatic properties . 34
7.3 For enhanced visibility properties . 35
Annex A (informative) Recommendations on the materials and construction for industrial safety
helmets . 36
Annex B (informative) Test results, uncertainty of measurement . 37
Annex C (informative) Significant technical changes between this document and
EN 397:2012+A1:2012 . 39
Annex ZA (informative) Relationship between this European Standard and the essential
Requirements of Regulation (EU) 2016/425 of the European Parliament and of the Council
of 9 March 2016 on personal protective equipment aimed to be covered . 40
Bibliography . 42

prEN 397:2022 (E)
European foreword
This document (prEN 397:2022) has been prepared by Technical Committee CEN/TC 158 “Head
protection”, the secretariat of which is held by SIS.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 397:2012+A1:2012.
In comparison with the previous version EN 397:2012+A1:2012 of edition EN 397:2012, the following
technical modifications have been made (see Annex C):
— Introduction revised and modernized;
— introducing two types of helmets, with protection against falling objects on-crown (type 1) or on-
crown and off-crown (type 2);
— measuring of drop speed is defined for improved reproducibility;
— added electrostatic and enhanced visibility requirements;
— electrical properties are removed and reference to EN 50365 is made;
— editorial changes.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
prEN 397:2022 (E)
Introduction
An industrial protective helmet is intended to be used in different work settings such as construction,
mining, shipping, manufacturing etc. With this in mind the accidents that occur can therefore be different
depending on the workplace. Accident statistics show there are typical hazards such as falling objects,
slips, trips or falls of a person from the same level or one above, loss of control of machinery and electrical
hazards. The intention with this document is to reduce the potential injury risk associated with the
hazards but will not eliminate them completely.
Manufacturers complying with European Standards offer a suite of head protection devices for general
industrial use:
— the industrial bump cap meeting the requirements of EN 812;
— the industrial protective helmet meeting the requirements of Type 1 and Type 2 in this document;
— the high performance industrial helmet meeting the requirements of EN 14052.
EN 812, Industrial bump caps is intended to provide protection to the wearer against the effects of striking
their head against hard or stationary objects with sufficient severity to cause lacerations or other
superficial injuries. They are not intended to provide protection against the effects of being struck by an
object or moving or suspended loads. In addition to the mandatory requirements the bump cap can have
shock absorption properties at low temperatures, be ignition resistant and have electrical insulation
properties.
In this document Type 1 industrial protective helmets are intended to reduce the possible consequential
effects of head injuries caused by being struck by an object in the crown area. In this document Type 2
industrial protective helmets are intended to offer some additional protection from impacts off crown,
front, rear, sides of the helmet and includes a mandatory retention system. In addition to the
requirements for the Type 1 and Type 2 helmets, this document also includes requirements for special
applications, for example low temperature, high temperature, electrical insulation and enhanced
visibility.
EN 14052 high performance industrial helmet offers even greater protection from falling objects,
protection from off crown impacts and protection from penetration by a flat blade striker. It also includes
a retention system that meets requirements for system release and system effectiveness properties.
Angled and tangential (rotational) impacts are one of the causes of head injuries. At the time of developing
this document, no rotational test method was available. Therefore, only linear impacts to a helmeted head
in the shock absorption test have been addressed. CEN/TC 158 will in the near future present a new test
method, which can be used in future revisions of this document.
The wearing of a helmet meeting the requirements in this document reduces, but not eliminates, the
consequences of head injury. A proportion of the energy of an impact is absorbed by the helmet, thereby
reducing the force of the blow sustained by the head.
There are limits to the amount of protection that can be provided and wearing a helmet cannot always
prevent death or long term disability.

prEN 397:2022 (E)
1 Scope
This document specifies requirements for design, performance, test methods and markings for industrial
protective helmets. The requirements apply to helmets for general use in industry.
Additional performance requirements for special applications are included to apply only when
specifically claimed by the helmet manufacturer.
Industrial protective helmets are intended to reduce the risk of head injuries by falling objects and reduce
consequential effects.
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 960:2006, Headforms for use in the testing of protective helmets
EN 13087-1:2000, Protective helmets — Test methods — Part 1: Conditions and conditioning
EN 13087-2:2012, Protective helmets — Test methods — Part 2: Shock absorption
EN 13087-3:2000, Protective helmets — Test methods — Part 3: Resistance to penetration
EN 13087-5:2012, Protective helmets — Test methods — Part 5: Retention system strength
EN 50365, Live working — Electrically insulating helmets for use on low and medium voltage installations
EN 60079-32-2:2015, Explosive atmospheres — Part 32-2: Electrostatics hazards — Tests
(IEC 60079-32-2:2015)
EN ISO 472:2013,
...