FprEN ISO 11611
(Main)Protective clothing for use in welding and allied processes (ISO/FDIS 11611:2024)
Protective clothing for use in welding and allied processes (ISO/FDIS 11611:2024)
This document specifies minimum safety requirements and test methods for protective clothing including hoods, aprons, sleeves, and gaiters that are designed to protect the wearer's body including head (hoods) and feet (gaiters) and that are to be worn during welding and allied processes with comparable risks. For the protection of the wearer’s head and feet, this document is only applicable to hoods and gaiters. This document does not cover requirements for feet, hand, face, and/or eye protectors.
This type of protective clothing is intended to protect the wearer against the following hazards:
— spatter (small splashes of molten metal) in 2 risk levels, short contact time with flame, radiant heat from an electric arc used for welding and allied processes,
— harmful artificial optical radiation (UV-A, UV-B and especially UV-C) in 3 risk levels generated during welding and allied processes and
— minimizes the possibility of electrical shock by short-term, accidental contact with live electrical conductors at voltages up to approximately 100 V d. c. in normal conditions of welding. Sweat, soiling, or other contaminants can affect the level of protection provided against short-term accidental contact with live electric conductors at these voltages.
The main manual welding processes are exemplified and are classified into process groups according to the maximum effectively emitted total irradiance, which has been determined and evaluated by measurement for these types of welding processes.
For adequate overall protection against the risks to which welders are likely to be exposed, personal protective equipment (PPE) covered by other standards should additionally be worn to protect the head, face, hands, and feet.
This document is not applicable for laser welding processes (coherent, monochromatic radiation sources).
Guidance for the selection of protective clothing for different welding activities is detailed in Annex B.
Schutzkleidung für Schweißen und verwandte Verfahren (ISO/FDIS 11611:2024)
Dieses Dokument legt Mindestanforderungen an und Prüfverfahren für die Sicherheit für Schutzkleidung fest, darunter Hauben, Schürzen, Überziehärmel und Gamaschen, die dafür vorgesehen sind, den Körper des Trägers, einschließlich Kopf (Hauben) und Füßen (Gamaschen) beim Schweißen und verwandten Verfahren mit vergleichbaren Risiken zu schützen. Für den Schutz des Kopfes und der Füße des Trägers ist dieses Dokument nur auf Hauben und Gamaschen anwendbar. Dieses Dokument legt keine Anforderungen an Schutzvorrichtungen für Füße, Hände, Gesicht und/oder Augen fest.
Diese Art von Schutzkleidung soll den Träger vor folgenden Gefährdungen schützen:
Spritzer (kleine Spritzer geschmolzenen Metalls) in 2 Risikostufen, kurzzeitigen Kontakt mit Flammen, Strahlungswärme eines elektrischen Lichtbogens, der beim Schweißen und verwandten Verfahren zur Anwendung kommt;
gefährliche künstliche optische Strahlung (UV-A, UV-B und insbesondere UV-C), die beim Schweißen und verwandten Verfahren entsteht, in 3 Risikostufen;
sie beschränkt die Möglichkeit eines elektrischen Schlages durch kurzzeitigen, unbeabsichtigten Kontakt mit spannungsführenden elektrischen Leitern mit Gleichspannung bis zu etwa 100 V unter üblichen Schweißbedingungen auf ein Mindestmaß. Schweiß, Verschmutzungen oder andere Verunreinigungen können den Schutzgrad gegen kurzzeitigen unbeabsichtigten Kontakt mit spannungsführenden elektrischen Leitern bei diesen Spannungen beeinträchtigen.
Die wichtigsten Handschweißverfahren werden erläutert und den Höchstwerten der effektiv emittierten Bestrahlungsstärke entsprechend Verfahrensgruppen zugeordnet, die für diese Arten von Schweißverfahren durch Messung [15] bestimmt und bewertet wurden.
Für angemessenen umfassenden Schutz gegen Risiken, denen Schweißer üblicherweise ausgesetzt sind, sollte zusätzlich persönliche Schutzausrüstung (PSA) zum Schutz von Kopf, Gesicht, Händen und Füßen getragen werden, die mit anderen Normen erfasst wird.
Dieses Dokument ist nicht anwendbar auf Laserstrahlschweißverfahren (kohärente, monochromatische Strahlenquellen).
Eine Anleitung für die Auswahl der Schutzkleidung für unterschiedliche Schweißaktivitäten ist in Anhang B enthalten.
Vêtements de protection utilisés pendant le soudage et les techniques connexes (ISO/FDIS 11611:2024)
Le présent document spécifie les exigences de sécurité minimales et les méthodes d'essai des vêtements de protection, comprenant les cagoules, les tabliers, les manches et les guêtres, conçus pour protéger le corps de l'utilisateur, y compris la tête (cagoules) et les pieds (guêtres) et qui doivent être portés durant les opérations de soudage et autres techniques connexes présentant des risques comparables. Pour la protection de la tête et des pieds de l'utilisateur, le présent document s'applique seulement pour les cagoules et les guêtres. Le présent document ne couvre pas les exigences pour la protection des pieds, de la main, du visage et/ou des yeux.
Ce type de vêtement de protection est destiné à protéger l'utilisateur contre les phénomènes dangereux suivants:
— les projections (petites projections de métal en fusion) avec 2 niveaux de risque, le contact de courte durée avec la flamme, la chaleur radiante provenant d'un arc électrique utilisé pour le soudage et les techniques connexes;
— les rayonnements optiques artificiels dangereux (UV-A, UV-B et en particulier UV-C) avec 3 niveaux de risque, produits pendant le soudage et les techniques connexes; et
— à réduire au minimum la possibilité de choc électrique en cas de contact accidentel de courte durée avec des conducteurs électriques sous une tension inférieure ou égale à approximativement 100 V en courant continu dans des conditions normales de soudage. La sueur, les salissures ou d'autres polluants peuvent avoir une incidence sur le niveau de protection apporté contre un contact accidentel de courte durée avec des conducteurs électriques sous une telle tension.
Les principaux procédés de soudage manuel sont illustrés et sont classés en groupes de procédés selon l'irradiance totale effective émise maximale, qui a été déterminée et évaluée par mesurage pour ces types de procédés de soudage.
Pour une protection complète adéquate contre les risques susceptibles d'être rencontrés par les soudeurs, il convient de porter des équipements de protection individuelle (EPI) couverts par d'autres normes en complément afin de protéger la tête, le visage, les mains et les pieds.
Le présent document n'est pas applicable aux procédés de soudage au laser (sources de rayonnement monochromatique cohérent).
Des recommandations pour le choix des vêtements de protection pour différentes activités de soudage sont détaillées à l'Annexe B.
Varovalna obleka pri varjenju in sorodnih postopkih (ISO/FDIS 11611:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 11611:2022
01-november-2022
Varovalna obleka pri varjenju in sorodnih postopkih (ISO/DIS 11611:2022)
Protective clothing for use in welding and allied processes (ISO/DIS 11611:2022)
Schutzkleidung für Schweißen und verwandte Verfahren (ISO/DIS 11611:2022)
Vêtements de protection utilisés pendant le soudage et les techniques connexes
(ISO/DIS 11611:2022)
Ta slovenski standard je istoveten z: prEN ISO 11611
ICS:
13.340.10 Varovalna obleka Protective clothing
25.160.01 Varjenje, trdo in mehko Welding, brazing and
spajkanje na splošno soldering in general
oSIST prEN ISO 11611:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 11611:2022
oSIST prEN ISO 11611:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11611
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:
2022-08-23 2022-11-15
Protective clothing for use in welding and allied processes
Vêtements de protection utilisés pendant le soudage et les techniques connexes
ICS: 13.340.10; 25.160.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
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NATIONAL REGULATIONS.
ISO/DIS 11611:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11611
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:
Protective clothing for use in welding and allied processes
Vêtements de protection utilisés pendant le soudage et les techniques connexes
ICS: 13.340.10; 25.160.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 11611:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
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ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General and design requirements . .5
4.1 General . 5
4.2 Protective clothing. 5
4.3 Size designation and fit . 5
4.4 Additional protective garments . 6
4.5 Pockets and flap closures . . 6
4.6 Closures and seams . 6
4.7 Hardware . 6
5 Sampling and pre-treatment . .7
5.1 Sampling . 7
5.1.1 General . 7
5.1.2 Sampling procedure on fabric materials for the UV transmission
measurement . 7
5.2 Pre-treatment of material . 8
5.3 Conditioning. 9
6 General performance requirements . 9
6.1 Classification . 9
6.2 Tensile strength . 9
6.3 Tear strength. 10
6.4 Burst strength of knitted materials and seams . 10
6.5 Seam strength . 10
6.6 Dimensional change of textile materials . 10
6.7 Limited flame spread . 10
6.7.1 General . 10
6.7.2 Testing in accordance with ISO 15025:2016, Procedure A (code letter A1) . 11
6.7.3 Testing in accordance with ISO 15025:2016, Procedure B (code letter A2).12
6.8 Impact of spatter (small splashes of molten metal) .12
6.9 Heat transfer (radiation) . .12
6.10 Electrical resistance . 13
6.11 Fat content of leather . 13
6.12 Protection against UV radiation . 13
6.13 Performance requirements . 13
7 Marking . .15
7.1 General . 15
7.2 Procedure and examples of markings: . 15
8 Information supplied by the manufacturer .16
8.1 General . 16
8.2 Intended use . 17
8.3 Improper use . 17
8.4 Care and maintenance . 17
Annex A (informative) General explanations related to the UV protective characteristics of
welders' protective clothing and to the measuring methods used .19
Annex B (normative) Classification system of the type of welders' clothing (Class 1/Class 2,
UV protection period class for welding process groups ‘A’, ‘B’and ‘C’) .20
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Annex C (normative) Test procedure for the protective effect against UV radiation emitted
by welding processes . .22
Annex D (normative) Instructions for calculating the effectively transmitted total
irradiance E and the resulting maximum time of use related to the exposition
eff
limit value H of 30 J/m, by using the determined worst-case UV transmission
eff
spectra of fabrics for welding protective garments .25
Annex E (normative) Spectral distribution and maximum effectively emitted total
irradiance E of the selected representative welding processes in Table B.2 .30
e
Annex F (normative) Spectral weighing function S (λ)for use in Table D.1, column F .36
eff
Annex G (normative) Determination of property values for rating and classification .41
Annex H (normative) Uncertainty of Measurement .42
Annex I (informative) Summary of conducted Round Robin Trials in the development
of the UV transmission test procedure . 44
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 aimed to be covered .46
Bibliography .49
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ISO/DIS 11611:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 94, Personal Safety – Protective clothing and
equipment, Subcommittee SC 13, Protective clothing, and by Technical Committee CEN/TC 162, Protective
clothing including hand and arm protection and lifejackets in collaboration.
This third edition cancels and replaces the second edition (ISO 11611:2015) which has been technically
revised with the following changes:
a) an introduction has been included;
b) the clause on sampling requirements has been modified;
c) the clause for ageing due to washing (maximum number of cleaning procedures as indicated by the
manufacturer) has been modified;
d) a new requirement for measuring the property value for rating and classification has been included;
e) the clause for the manufacturer's instructions and information has been modified;
f) a new Annex G for measuring property value for rating and classification has been included;
g) a procedure for sampling and testing the protective effect of fabrics, garments and gloves for use
in welding against UV radiation (UV-A, UV-B, UV-C), taking into account representative manual
welding processes, has been included;
h) Annex A (informative) comprising general explanations for UV protective characteristics of
protective clothing for use in welding. All other annexes have been renumbered accordingly has
been included;
i) Annex B (normative) has been complemented by a three-step UV protection classification system
(Table B.2) for clothing for use in welding.
j) Annex C (normative), with the testing procedure for the protective effect against UV radiation
emitted by welding processes, has been included;
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oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
k) Annex D (normative), with instructions for calculating the effectively transmitted total irradiance
and the resulting maximum time of use related to the exposition limit value by using the determined
worst-case UV transmission spectra of fabrics for welding protective garments, has been included
l) Annex E (normative), with the spectral distribution and maximum effectively emitted total
irradiance of the selected representative welding processes, has been included;
m) Annex F (normative), with the spectral weighing function s (λ)for use in Annex D, has been
eff
included;
n) the previous Annex C has become to Annex G
o) the previous Annex D has become to Annex H and has been revised.
p) Annex I (informative), with the summary of conducted Round Robin Trials in the development of
the UV transmission test procedure, has been included;
q) Annex ZA has been revised to reflect the relationship between this European Standard and the
essential requirements of Regulation (EU) 2016/425 regarding the new technical content of this
standard
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oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
Introduction
The purpose of this document is to provide minimum performance requirements for clothing for use in
welding and allied processes.
For complete protection against exposure to heat and flame, it will be necessary to protect the
head, face, hands, and/or feet with suitable personal protective equipment (PPE) and in some cases,
appropriate respiratory protection might also be considered necessary.
[2]
Attention is drawn to ISO/TR 2801:2007 , which sets out guidelines for selection, use, care, and
maintenance of protective clothing against heat and flame.
Nothing in this document is intended to restrict any jurisdiction, purchaser, or manufacturer from
exceeding these minimum requirements.
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oSIST prEN ISO 11611:2022
oSIST prEN ISO 11611:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 11611:2022(E)
Protective clothing for use in welding and allied processes
1 Scope
This document specifies minimum safety requirements and test methods for protective clothing
including hoods, aprons, sleeves, and gaiters that are designed to protect the wearer's body including
head (hoods) and feet (gaiters) and that are to be worn during welding and allied processes with
comparable risks. For the protection of the wearer’s head and feet, this International Standard is only
applicable to hoods and gaiters. This International Standard does not cover requirements for feet, hand,
face, and/or eye protectors.
This type of protective clothing is intended to protect the wearer against the following hazards:
• spatter (small splashes of molten metal) in 2 risk levels, short contact time with flame, radiant heat
from an electric arc used for welding and allied processes,
• harmful UV radiation (UV-A, UV-B and especially UV-C) in 3 risk levels generated during welding
and allied processes and
• minimizes the possibility of electrical shock by short-term, accidental contact with live electrical
conductors at voltages up to approximately 100 V d. c. in normal conditions of welding. Sweat, soiling,
or other contaminants can affect the level of protection provided against short-term accidental
contact with live electric conductors at these voltages.
The main manual welding processes are exemplified and are classified into process groups according
to the maximum effectively emitted total irradiance, which have been determined and evaluated by
[15]
measurement for these types of welding processes.
For adequate overall protection against the risks to which welders are likely to be exposed, personal
protective equipment (PPE) covered by other International Standards should additionally be worn to
protect the head, face, hands, and feet.
This standard is not applicable for laser welding processes (coherent, monochromatic radiation
sources).
Guidance for the selection of protective clothing for different welding activities is detailed in Annex B.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3376:2020, Leather — Physical and mechanical tests — Determination of tensile strength and
percentage elongation
ISO 3377-1:2011, Leather — Physical and mechanical tests — Determination of tear load — Part 1: Single
edge tear
ISO 4048:2018, Leather — Chemical tests — Determination of matter soluble in dichloromethane and free
fatty acid content
ISO 5077:2007, Textiles — Determination of dimensional change in washing and drying
ISO 6942:2022, Protective clothing — Protection against heat and fire — Method of test: Evaluation of
materials and material assemblies when exposed to a source of radiant heat
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
ISO 9150:1988, Protective clothing — Determination of behaviour of materials on impact of small splashes
of molten metal
I S O 136 8 8:2013+A 1: 2021, Protective clothing — General requirements
ISO 13934-1:2013, Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and
elongation at maximum force using the strip method
ISO 13935-2:2014, Textiles — Seam tensile properties of fabrics and made-up textile articles — Part 2:
Determination of maximum force to seam rupture using the grab method
ISO 13937-2:2000, Textiles — Tear properties of fabrics — Part 2: Determination of tear force of trouser-
shaped test specimens (Single tear method)
ISO 13938-1:2019, Textiles — Bursting properties of fabrics — Part 1: Hydraulic method for determination
of bursting strength and bursting distension
ISO 13938-2:2019, Textiles — Bursting properties of fabrics — Part 2: Pneumatic method for determination
of bursting strength and bursting distension
ISO 15025:2016, Protective clothing — Protection against flame — Method of test for limited flame spread
EN 1149-2:1997, Protective clothing — Electrostatic properties — Part 2: Test method for measurement of
the electrical resistance through a material (vertical resistance)
EN 410:2011, Glass in building – Determination of luminous and solar characteristics of glazing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
ageing
changing of the product performance over time during use or storage
Note 1 to entry: Ageing is caused by a combination of several factors, such as the following:
— cleaning, maintenance, or disinfecting process;
— exposure to visible and/or ultraviolet radiation;
— exposure to high or low temperatures or to changing temperatures;
— exposure to chemicals including humidity;
— exposure to biological agents such as bacteria, fungi, insects, or other pests;
— exposure to mechanical action such as abrasion, flexing, pressure, and strain;
— exposure to contaminants such as dirt, oil, splashes of molten metal, etc.;
— exposure to wear and tear.
3.2
allied processes
processes having similar types and levels of risk as welding
EXAMPLE Cutting, arc air gouging, and hot spraying.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
3.3
artificial optical radiation
Optical radiation from artificial sources of light/radiation within a broad range of wave lengths over
the total electromagnetic spectrum from deep ultraviolet (UV) to the visible spectrum (VIS), and far
into the infrared (IR) range.
Note 1 to entry: Classification is made into coherent radiation sources (narrowband 'monochromatic' radiation
from lasers) and incoherent radiation (broadband 'polychromatic' radiation from all other artificial light sources,
except for lasers.
3.4
cleaning
process by which an item of PPE is again made serviceable and/or hygienically wearable by removing
any dirt or contamination
Note 1 to entry: A cleaning cycle is typically a washing plus drying or a dry cleaning treatment followed, if
required, by ironing, or other finishing.
3.5
clothing assembly
series of garments arranged in the order as worn
Note 1 to entry: They may contain multilayer materials, material combinations or a series of separate garments
in single layers.
3.6
conditioning
keeping of the samples under standard conditions of temperature and relative humidity for a minimum
period of time
3.7
component assembly
combination of all materials and hardware presented exactly as the finished garment construction
3.8
gaiter
removable covering intended to protect the part of the leg below the knee which can also cover the
upper surface of shoes
3.9
hardware
non-fabric items forming part of or optional extras in a garment
EXAMPLE Metal or plastic buttons or zippers and touch and close fasteners or hook and loop fasteners.
3.10
hole
any opening, break, or discontinuity of any size in the original structure of the test specimen’s fabric
caused by application of the test flame
[SOURCE: ISO 15025:2016]
3.11
hood
item of PPE made from material which covers the head and neck and can also cover the shoulders
3.12
innermost lining
innermost face of a component assembly closest to the wearer’s skin
Note 1 to entry: Where the innermost lining forms part of a material combination, the material combination is
regarded as the innermost lining.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
3.13
interlining
layer between the outermost layer and the innermost lining in a multilayer garment
3.14
material
substances excluding hardware, of which an item of clothing is made
3.15
material assembly
combination of all materials of a multi-layer garment presented exactly as the finished garment
construction
3.16
material combination
material produced from a series of separate layers, fixed together during the garment manufacturing
stage
3.17
multilayer material
material consisting of different layers intimately combined prior to the garment manufacturing stage
EXAMPLE The combining process includes weaving, quilting, coating, or gluing.
3.18
outer material
outermost material of which the item of clothing is made
3.19
patch pocket
pocket located on the exterior of a protective garment, which is stitched as a patch over the outer layer
of the protective garment
3.20
pre-treatment
standard way of preparing the samples before testing
Note 1 to entry: This can include e.g. a number of cleaning cycles, submitting the sample to heat, mechanical
action, or any other relevant exposure and is completed by conditioning.
3.21
protective clothing
clothing which covers or replaces personal clothing and which is designed to provide protection for the
wearer’s upper and lower torso, neck, arms, and legs
3.22
protective garment
individual item of protective clothing the wearing of which provides protection against specified
hazards to the part of the body that it covers
EXAMPLE Protective coat, apron, trousers, gaiters, hoods, boiler suit, or coverall.
3.23
seam
any method of permanent fastening between two or more pieces of material
3.23.1
side seam
seam that runs laterally along the garment when it is placed flat on a surface, with the front uppermost
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
3.23.2
structural seam
seam that is necessary for the integrity of the garment
3.24
sleeve
removable covering intended to protect part or all of the arm and the wrist in addition to sleeves in a
jacket or overall
3.25
welding
process used in joining metal components involving local melting of metal
3.26
welding time
effective time during which the arc is burning during the welding process (“active arc time”) in which
persons are within the operational range of the burning arc (“time of exposition”)
4 General and design requirements
4.1 General
General requirements which are not specifically covered in this document shall be in accordance with
I S O 136 8 8:2013+A 1: 2021.
Welders’ protective clothing shall be designed to prevent electrical conduction from the outside to the
inside, e.g. by metal fasteners. Conformity shall be checked by visual inspection.
4.2 Protective clothing
Welders’ protective suits shall completely cover the upper and lower torso, neck, arms to the wrist, and
legs to the ankle. Suits shall consist of the following:
a) a single garment, e.g. a coverall or boiler suit;
b) a two-piece garment, consisting of a jacket and a pair of trousers.
Pleats in the exterior surface of the garment can act as trapping points for hot/molten materials. If pleats
are present in the garment, the bottoms of the pleats shall incorporate a means whereby entrapment of
molten metal can be prevented, for example by incorporating diagonal stitches or some other feature.
Conformity shall be checked by visual inspection.
4.3 Size designation and fit
Garment sizes shall be in accordance with the requirements of ISO 13688:2013+A1: 2021.
Where protection to the requirements of this document is provided by an outer two-piece suit, it shall
be determined that, when correctly sized for the wearer, an overlap between the jacket and trousers
remains when one standing wearer firstly fully extends both arms above the head and then bends over
until the fingertips touch the ground.
Conformity shall be checked by visual inspection including an assessment of fit and physical measuring
when the appropriate size of clothing is donned by a wearer.
In addition, the wrists, lower arms, and ankles shall also remain covered in an upright position. This
shall also apply to one-piece suits.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
4.4 Additional protective garments
Welder’s protective garments can be designed to provide extra protection against heat and flame
aspects, harmful UV radiation and electrical shock for specific areas of the body when worn in addition
to a suit according to 4.2, e.g. neck curtain, hoods, sleeves, apron, and gaiters. Aprons shall cover the
front body of the user at least from side seam to side seam.
In the case of hoods, manufacturers shall identify the specific(s) visors to be incorporated into the hood.
Performance testing of additional protective garments shall be carried out on the assembly, comprising
the suit plus the additional protective garment. Additional protective garments such sleeves, apron,
and gaiters shall cover the intended areas when worn with a suit of appropriate size and the additional
item alone shall also meet the requirements of this document.
4.5 Pockets and flap closures
Where garments are constructed with pockets, the pockets shall be constructed to the following design:
a) pockets with external openings, including patch pockets shall be made of material(s) conforming to
6.7 and 6.8;
b) external opening pockets including pass-through openings shall have a covering flap except for:
— side pockets below the waist which do not extend more than 10° forward of the side seam;
— a single rule pocket with an opening not greater than 75 mm placed behind the side seam on one
or both legs and measured flat;
c) all flaps shall be at least 20 mm wider than the opening (at least 10 mm on each side) to prevent
the flap from being tucked into the pocket. They shall be stitched down on each side or capable of
covering the pocket opening by fastening. Flap materials shall conform to 6.7 and 6.8.
Conformity shall be checked by visual inspection and physical measurement.
4.6 Closures and seams
Closures shall be designed with a protective cover flap on the outside of the garment. The maximum
distance between buttonholes/press studs shall be 150 mm. If zippers are used, the slide fastener shall
be designed to lock when completely closed. Cuffs can be provided with closures to reduce their width.
The closure and any fold which it creates shall be on the underside of the cuff. Cuffs shall not have turn-
ups. Neck openings shall be provided with closures.
Trousers or one-piece suits shall not have turn-ups. They can have side slits which shall have a means of
closure and the slit and closure shall be covered.
Conformity shall be checked by visual inspection.
4.7 Hardware
Hardware penetrating the outer material of a welders’ protective garment or garment assembly shall
not be exposed to the innermost surface of the garment or the garment assembly.
Conformity shall be checked by visual inspection.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
5 Sampling and pre-treatment
5.1 Sampling
5.1.1 General
The sampling process and number of samples shall be in accordance with the procedure described in
5.1.2 in case the sampling is not described in the corresponding test standard which is the case for
ISO 13934-1, ISO 13937-2, ISO 13938-1:2019 & ISO 13938-2:2019, ISO 13935-2:2014, ISO 5077:2007 and
ISO 6942:2022.
The size of the test specimens of garment materials or garments presented to the different test methods,
shall be in accordance with the respective test standards specified in the requirements of Clause 6.
The samples for testing the UV protection during welding operations shall be taken in accordance with
5.1.2.
NOTE The sampling process in 5.1.2 ensures that the variation of the fabric is taken into account.
In the areas of the finished garment, which will be exposed to UV radiation, the sample shall only be
taken from the least protective parts of the whole front body side including sleeves and legs
If materials are different on the back of the garment (normally not exposed to UV), a representative
sample for the component assembly or of the garment from this area shall also be taken.
5.1.2 Sampling procedure on fabric materials for the UV transmission measurement
5.1.2.1 Important introductory considerations:
The fluorescence of the (textile) materials has an impact on the UV transmission measurement results.
NOTE Fluorescence can occur intentionally (high-visibility colours) or unintentionally (for example caused
by fluorescent nuancing dyestuffs of non-fluorescent colours).
In any case, the UV transmission measurement of fluorescent material results in lower protection times
ue to the emission of fluorescence radiation, which is recorded in addition to the actual transmitted
radiation by the detector of the spectrophotometer. Therefore, the test samples shall be checked on
fluorescence prior to the measurement.
5.1.2.2 Sampling process
To take this into account and not to underrate the protection time, a test specimen without fluorescence
or with the lowest possible fluorescence shall be selected. The fluorescence shall be checked e.g. using a
spectroscopic long pass filter with the following properties:
• Cutoff range 200 nm - 390 nm, 5 optical densities
• Transmission range: 440 nm – 800 nm, 90 % transmission
• Slope range: cutoff edge (420 ± 5) nm
or with any other technical comparable procedures leading to the same result.
In addition, the color of the (textile) materials has an impact on the UV transmission measurement
results too. Therefore, a screening of coloured test samples shall be performed prior to the measurement
and the sample with the highest UV transmission (worst case scenario: Lowest protection time) shall
be selected out of the existing colour range for the UV transmission measurement.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
To obtain the most realistic number for the protection time against the UV radiation of the relevant
welding process, an undyed test specimen without fluorescence is highly recommended, but not
mandatory.
For determining the UV transmission properties of welding protection garments, a representative
fabric for the component assembly shall be used. The test specimens shall be taken from the plain fabric
following this procedure:
Cut 5 specimens in (7 ± 0,1) cm × (7 ± 0,1) cm size (M1-M5) in (45 ± 1)° angle from left to right selvedge
(warp/longitudinal direction) with an even distance between each of the 5 specimens and leave at least
12 cm gap to each selvedge (see Figure 1).
Key
M1 to M5 Specimen 1 to 5
Figure 1
NOTE Textiles are not homogeneous materials like plastic or metal but to a certain extent inhomogeneous
instead. This inhomogeneity results in varying UV-transmission results over the area of a fabric. Therefore, this
adapted sampling procedure was developed in one of the ISO 11611 UV-transmission round robin trials to take
this inhomogeneity into account.
5.2 Pre-treatment of material
Before each test specified in 6.2 to 6.10, the test materials and test specimens shall be pre-treated by
cleaning according to the instructions of the manufacturer. If the manufacturer makes no specifications
the test shall be carried out in new state and after 5 washes. The method and number of pre-treatment
cycles shall be reported in the test report. If the manufacturer’s instructions indicate that cleaning is
not allowed, i.e. single use garments, then testing will be carried out on new material.
The cleaning shall be in line with the manufacturer’s instructions, on the basis of standardized
processes. If the number of cleaning cycles is not specified, the tests shall be carried out after five
cleaning cycles (a cleaning cycle is one wash and one dry cycle). This shall be reflected in the information
supplied by the manufacturer. If the garment can be washed and dry-cleaned, it shall only be washed. If
only dry-cleaning is allowed, the garment shall be dry-cleaned in accordance with the manufacturer's
instructions.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
Leather materials shall be tested in the new state, except if the manufacturer indicates that cleaning is
allowed. In that case, cleaning shall be carried out according to the manufacturer's instructions.
The test specified in 6.11 (fat content of leather) and 6.12 (Protection against UV radiation) shall be
carried out in the new state (as received).
NOTE The manufacturer’s instructions typically indicate one or several of the various methods and
[9] [10] [11]
processes of ISO 6330 , ISO 15797 , ISO 3175-2 , or equivalent as standardized processes for cleaning.
5.3 Conditioning
Specimens other than leather shall be conditioned for at least 24 h in an atmosphere having a
temperature of (20 ± 2) °C and a relative humidity of (65 ± 5) %. Leather specimens shall be conditioned
for at least 48 h in an atmosphere having a temperature of (20 ± 2) °C and a relative humidity of
(65 ± 5) %. Testing shall be carried out within 5 min of removal from this atmosphere.
Samples for electrical resistance testing specified in 6.10 shall be conditioned and tested in an
atmosphere having a relative humidity of (85 ± 5) % and a temperature of (20 ± 2) °C.
6 General performance requirements
6.1 Classification
This document specifies two protection classes with specific performance requirements with regard to
all properties but the UV protection (see Annex B, Table B.1), i.e. Class 1 being the lower risk level and
Class 2 the higher risk level.
— Class 1 is protection against less hazardous welding techniques and situations, causing lower risk
levels of spatter and radiant heat.
— Class 2 is protection against more hazardous welding techniques and situations, causing higher risk
levels of spatter and radiant heat.
Both protection classes are complemented by a UV protection classification system for specification of
the maximum exposition time of the wearer against three representative welding process groups (see
Annex B, Table B.2), with group 'A' representing a low, group 'B' a medium, and group 'C' a high risk
level respectively effectively emitted total UV irradiance (E ) welding process.
eff
— Group 'A' (low risk level / effectively emitted total UV irradiance welding process): E ≤ 6 W/m ;
eff
— Group 'B' (medium risk level / effectively emitted total UV irradiance welding process): 6 W/
2 2
m > E ≤ 16 W/m ;
eff
— Group 'C' (high risk level / effectively emitted total UV irradiance welding process): 16 W/
2 2
m > E ≤ 170 W/m .
eff
Further details are given in Annex B Table B.2.
Wherever in Clause 6 the requirements for a property value are expressed in terms of a minimum or
maximum value and wherever a minimum or maximum value is to determine a Level or Class for that
property, the resultant property value shall be determined according to Annex G. All tests in Clause 6
shall be evaluated in accordance with Annex H.
6.2 Tensile strength
Sampling procedure and number of samples shall be in accordance with 5.1.1.
When tested in accordance with ISO 13934-1:2013, woven outer materials shall have a minimum tensile
strength of 400 N in both the machine and cross directions.
oSIST prEN ISO 11611:2022
ISO/DIS 11611:2022(E)
When tested in accordance with ISO 3376:2011, leather outer materials shall have a minimum tensile
strength of 80 N in two directions at right angles when the standard te
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