EN 943-1:2015

SLOVENSKI STANDARD
01-december-2015
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Protective clothing against dangerous solid, liquid and gaseous chemicals, including
liquid and solid aerosols - Part 1: Performance requirements for Type 1 (gas-tight)
chemical protective suits
Schutzkleidung gegen gefährliche feste, flüssige und gasförmige Chemikalien,
einschließlich Flüssigkeitsaerosole und feste Partikel - Teil 1: Leistungsanforderungen
für Typ 1 (gasdichte) Chemikalienschutzkleidung
Vêtements de protection contre les produits chimiques dangereux solides, liquides et
gazeux, y compris les aérosols liquids et les particules solides - Partie 1: Exigences de
performance pour Type 1 (étanches au gaz) des combinaisons de protection chimique
Ta slovenski standard je istoveten z: EN 943-1:2015
ICS:
13.340.10 Varovalna obleka Protective clothing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 943-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2015
ICS 13.340.10 Supersedes EN 943-1:2002
English Version
Protective clothing against dangerous solid, liquid and gaseous
chemicals, including liquid and solid aerosols - Part 1:
Performance requirements for Type 1 (gas-tight) chemical
protective suits
Vêtements de protection contre les produits chimiques Schutzkleidung gegen gefährliche feste, flüssige und
dangereux solides, liquides et gazeux, y compris les gasförmige Chemikalien, einschließlich
aérosols liquides et les particules solides - Partie 1: Flüssigkeitsaerosole und feste Partikel - Teil 1:
Exigences de performance des combinaisons de protection Leistungsanforderungen für Typ 1 (gasdichte)
chimique étanches aux gaz (type 1) Chemikalienschutzkleidung
This European Standard was approved by CEN on 27 June 2015.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 943-1:2015 E
worldwide for CEN national Members.

Contents Page
European foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Performance requirements .8
4.1 General .8
4.2 Materials .8
4.3 Seams, joins, and assemblages . 11
4.4 Strength of detachable joins . 12
4.5 Permeation requirement for closure . 12
5 Requirements for the whole suit . 12
5.1 General . 12
5.2 Compatibility with other equipment. 14
5.3 Conditioning to simulate storage conditions . 14
5.4 Leak tightness (static inflation test) . 14
5.5 Total inward leakage test . 14
5.6 Visor . 15
5.6.1 General . 15
5.6.2 Distortion of vision . 15
5.6.3 Distortion of vision after chemical exposure . 15
5.6.4 Field of vision . 15
5.6.5 Mechanical strength . 15
5.7 Face piece for suits without integral visor . 15
5.8 Pass-through . 16
5.8.1 General . 16
5.8.2 Strength of pass-through . 16
5.8.3 Performance of pass-through providing breathing air . 16
5.9 Airline supply system . 16
5.9.1 General . 16
5.9.2 Couplings . 16
5.9.3 Connections . 16
5.9.4 Connections strength . 17
5.10 Exhaust assembly. 17
5.11 Pressure in chemical protective suit . 17
5.12 External ventilating hose . 17
5.13 Air flow rate of breathing air and/or ventilating air supply. 17
5.13.1 General . 17
5.13.2 Continuous flow valve for Type 1c breathing air supply . 17
5.13.3 Warning and measuring facilities . 18
5.13.4 Compressed air supply tube . 18
5.14 Carbon dioxide content of inhalation air . 18
5.15 Noise associated with air supply to suit . 18
5.16 Practical Performance . 19
6 Test methods . 19
6.1 Visual inspection . 19
6.2 Practical performance test . 19
6.2.1 General . 19
6.2.2 Work simulation test . 20
6.2.3 Information to be recorded . 21
6.3 Suit pressure test. 21
6.4 Pull test for joins and assemblages . 21
6.5 Exhalation valves . 22
6.5.1 Leak tightness test . 22
6.5.2 Connection between exhalation valve (exhaust assembly) and chemical protective

clothing material . 22
6.6 Mechanical strength test for visor . 22
6.7 Distortion of vision after chemical exposure . 23
7 Marking . 23
8 Information supplied by the manufacturer . 24
Annex A (normative)  Total inward leakage test . 26
A.1 Principle. 26
A.2 Test subjects . 26
A.3 Sodium chloride method . 26
A.3.1 Aerosol generator . 26
A.3.2 Test agent . 26
A.3.3 Detection . 26
A.3.4 Flame photometer . 27
A.3.5 Sample pump . 27
A.3.6 Sampling of chamber concentration . 27
A.4 Sulphur hexafluoride method (SF6) . 28
A.4.1 Test agent . 28
A.4.2 Detection . 29
A.5 Sampling probe . 29
A.6 Test chamber . 30
A.7 Treadmill . 30
A.8 Test procedure . 30
A.8.1 Test subject . 30
A.8.2 Test protocol . 31
A.8.3 Assessment of results . 32
Annex B (normative) Material tests . 33
B.1 General . 33
B.2 Material tests - Resistance to ignition . 33
Annex C (normative) Optical Chart . 34
Annex D (informative) Adapted test cell for testing closures (zipper) . 35
Annex E (informative) Significant technical changes between this document and the previous

edition of this European Standard . 36
Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 89/686/EEC . 37
Bibliography . 39

European foreword
This document (EN 943-1:2015) has been prepared by Technical Committee CEN/TC 162 “Protective clothing
including hand and arm protection and lifejackets”, 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 February 2016, and conflicting national standards shall be withdrawn
at the latest by February 2016.
This document supersedes EN 943-1:2002.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
For details of the significant changes made since EN 943-1:2002 please refer to Annex E.
EN 943 consists of the following parts:
EN 943-1, Protective clothing against solid, liquid and gaseous chemicals, including liquid and solid
aerosols — Part 1: Performance requirements for Type 1 (gas-tight) chemical protective suits
EN 943-2, Protective clothing against solid, liquid and gaseous chemicals, including aerosols — Part 2:
Performance requirements for Type 1 gas-tight chemical protective suits for emergency teams (ET)
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
1 Scope
This European Standard specifies the minimum requirements, test methods, marking and information supplied
by the manufacturer for ventilated and non-ventilated gas-tight chemical protective suits.
It specifies full body personal protective ensembles to be worn for protection against solid, liquid and gaseous
chemicals, including liquid and solid aerosols.
This standard does not establish minimum criteria for protection for non-chemical hazards, e.g. radiological,
fire, heat, explosive, infective agents. This type of equipment is not intended for total immersion in liquids.
The seams, joins and assemblages attaching the accessories are included within the scope of this standard.
This standard specifies only supplementary requirements for components. The basic performance criteria for
the components gloves, boots or respiratory protective equipment are given in other European Standards.
Particulate protection is limited to physical penetration of the particulates only.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 132, Respiratory protective devices - Definitions of terms and pictograms
EN 136:1998, Respiratory protective devices - Full face masks - Requirements, testing, marking
EN 388, Protective gloves against mechanical risks
EN 1073-2, Protective clothing against radioactive contamination - Part 2: Requirements and test methods for
non-ventilated protective clothing against particulate radioactive contamination
EN 12021, Respiratory equipment - Compressed gases for breathing apparatus
EN 13274-4:2001, Respiratory protective devices - Methods of test - Part 4: Flame tests
EN 14593-1:2005, Respiratory protective devices - Compressed air line breathing apparatus with demand
valve - Part 1: Apparatus with a full face mask - Requirements, testing, marking
EN 14594:2005, Respiratory protective devices - Continuous flow compressed air line breathing apparatus -
Requirements, testing, marking
EN 14325:2004, Protective clothing against chemicals - Test methods and performance classification of
chemical protective clothing materials, seams, joins and assemblages
CEN ISO/TR 11610, Protective clothing - Vocabulary (ISO/TR 11610)
EN ISO 13688:2013, Protective clothing - General requirements (ISO 13688:2013)
EN ISO 13982-2, Protective clothing for use against solid particulates - Part 2: Test method of determination
of inward leakage of aerosols of fine particles into suits (ISO 13982-2:2004)
EN ISO 17491-3, Protective clothing - Test methods for clothing providing protection against chemicals - Part
3: Determination of resistance to penetration by a jet of liquid (jet test) (ISO 17491-3:2008)
EN ISO 20345:2011, Personal protective equipment - Safety footwear (ISO 20345:2011)
ISO 17491-1:2012, Protective clothing — Test methods for clothing providing protection against chemicals —
Part 1: Determination of resistance to outward leakage of gases (internal pressure test)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in CEN ISO/TR 11610 and EN 132
together with the following apply.
3.1
assemblage
permanent fastening between two or more different garments, or between the protective clothing and
accessories obtained for example by sewing, welding, vulcanizing, gluing
[SOURCE: EN 1073-1:1998]
3.2
join
non-permanent fastening between two different garments, or between protective clothing and accessories
3.3
bootees
sock like gastight extension of the suit leg that encapsulates the entire foot
Note 1 to entry: Intended to be worn inside separate (i.e. not attached) protective boots or protective shoes.
3.4
cleaning
removal of contamination or soiling
Note 1 to entry: There are several separate types of cleaning that may be applicable to chemical protective clothing.
The purpose of each type of cleaning is distinct, though the same operation may, under some circumstances, fulfil the
requirements of more than one type of cleaning.
3.4.1
hygienic cleaning
operation to remove soiling that originates from the body of the wearer of the suit
Note 1 to entry: The purpose of this type of cleaning is to render the inside of the suit sufficiently clean that another
wearer can then safely and comfortably wear it. Hygienic cleaning can consist of rinsing or wiping the inside of the suit
with a disinfectant solution.
Note 2 to entry: An example of soiling intended to be removed by hygienic cleaning is perspiration.
3.4.2
washing
operation to remove general soiling that does not originate from either the wearer of the suit or the chemical
hazards against which the suit is worn as protection
Note 1 to entry: An example of soiling intended to be removed by washing is mud.
3.4.3
decontamination
operation to remove chemical contamination from the outside of the suit
Note 1 to entry: The primary purpose of decontamination is to render the outside of the suit sufficiently clean that the
wearer can remove the suit without coming into contact with those chemicals from which the suit has been protecting him
or her. A secondary aim of decontamination may be to render the suit sufficiently chemically clean that it will not
contaminate future wearers or personnel involved in the maintenance and/or storage of the suit before it is next used.
Decontamination may involve wiping or rinsing the suit with copious amount of water, or treatment with a solution, liquid or
solid in order to neutralize the contamination or otherwise render it harmless.
3.5
disinfection
purposeful reduction of the number of certain unwanted microorganisms by physical or chemical inactivation,
so that they can cause no more infection under the given circumstances
3.6
external ventilating hose
hose that is used to supply a type 1 suit with breathable air providing internal ventilation
3.7
integral overshoe
gas-tight integrated footwear, connected to the chemical protective suit and intended to be worn with personal
footwear inside thus protecting the wearer’s feet and footwear
Note 1 to entry: The integral overshoe and the personal footwear together fulfil the requirements of footwear. An
overshoe may have either a permanent or detachable outsole.
3.8
Type 1 - gas-tight chemical protective suit
(type 1 suit)
one-piece garment with hood, gloves and boots which, when worn with appropriate respiratory protective
devices, provides the wearer a high degree of protection against harmful liquids, particles and gaseous or
vapour-phase contaminants
3.8.1
Type 1a - gas-tight chemical protective suit
(type 1a suit)
gas-tight chemical protective suit to be used in conjunction with a breathable air supply which is both
independent of the ambient atmosphere and worn inside the suit
Note 1 to entry: e.g. a self-contained open-circuit compressed-air breathing apparatus.
3.8.2
Type 1b - gas-tight chemical protective suit
(type 1b suit)
gas-tight chemical protective suit to be used in conjunction with a breathable air supply independent of the
ambient atmosphere supplied from or worn outside the suit
Note 1 to entry: e.g. a self-contained open circuit compressed air breathing apparatus.
Note 2 to entry: As chemical protective suits are used with respiratory devices, special attention should be given to the
adequate selection and fit of respiratory protective equipment. The limiting factors for the use of respirators should be
taken into consideration.
3.8.3
Type 1c - gas-tight chemical protective suit
(type 1c suit)
gas-tight chemical protective suit to be used in conjunction with breathable air providing positive pressure
where the suit is the face piece
Note 1 to entry: e.g. air lines where the wearer breathes from the suit.
3.8.4
Ventilated suit
Type 1a, 1b, or 1c which includes the provision of air for comfort, or dehumidification purposes
4 Performance requirements
4.1 General
This European Standard requires that various materials of construction and components of the suit be tested
for resistance to chemical permeation. In cases where more than one chemical is tested, each component and
material of construction shall be tested against each chemical.
4.2 Materials
Chemical protective clothing materials of construction (i.e. materials used in the construction of the garment,
bootees, boots, gloves, and (if fitted) visor) shall fulfil all the non-optional test requirements given in Table 1.
The optional tests listed in Table 1 may be carried out at the discretion of the manufacturer in accordance with
intended use. Components such as integral overshoes or boots, integral gloves shall also fulfil the minimum
performance requirements of the respective product standard.
Pre-conditioning and conditioning shall be carried out in accordance with EN 14325:2004, 4.2 and 4.3.
Materials of construction shall comply with all subsections of EN ISO 13688:2013, 4.2.
Table 1 — Minimum performance requirements of Type 1 chemical protective clothing
Minimum performance class
Clothing Performance (as defined in the relevant
Test method reference
component requirement table in EN 14325:2004
unless otherwise stated)
Abrasion
4.4 of EN 14325:2004 3
resistance
Flex cracking
4.5 of EN 14325:2004 1
resistance
Flex cracking at
–30 °C 4.6 of EN 14325:2004 2
(optional)
Trapezoidal tear
4.7 of EN 14325:2004 3
resistance
Garment
Tensile strength 4.9 of EN 14325:2004 3
Puncture
4.10 of EN 14325:2004 2
resistance
Resistance to
permeation by
chemicals 4.11 of EN 14325:2004 3
(liquids and
gases)
Resistance to
4.14 of EN 14325:2004 See B.2
ignition
Minimum performance class
Clothing Performance (as defined in the relevant
Test method reference
component requirement table in EN 14325:2004
unless otherwise stated)
Abrasion
4.4 of EN 14325:2004 3
resistance
Flex cracking
4.5 of EN 14325:2004 1
resistance
Bootees
Flex cracking at
(If made from
–30 °C 4.6 of EN 14325:2004 2
different
(optional)
material than
the suit)
Resistance to
permeation by
chemicals 4.11 of EN 14325:2004 3
(liquids and
gases)
Abrasion
4.4 of EN 14325:2004 3
resistance
Trapezoidal tear
4.7 of EN 14325:2004 3
resistance
Integral
Puncture
4.10 of EN 14325:2004 2
overshoe
resistance
(upper)
Resistance to
permeation by
chemicals 4.11 of EN 14325:2004 3
(liquids and
gases)
Integral
Puncture
overshoe 6.2.1 of EN ISO 20345:2011 6.2.1 of EN ISO 20345:2011
resistance
(outsole)
Resistance to
permeation by
Boots chemicals 4.11 of EN 14325:2004 3
(liquids and
gases)
Resistance to
permeation by
chemicals 4.11 of EN 14325:2004 3
(liquids and
Gloves
gases)
Mechanical
EN 388 See table footnote a
a
resistance
Resistance to
permeation by
chemicals
4.11 of EN 14325:2004 3
Visor, face
(liquids and
mask, face
b
gases)
seal (if fitted)
Mechanical
5.6.5 of EN 943–1 comply
strength
a
To select the suitable gloves or boots see the SUCAM document or perform a risk assessment
to choose the product with the necessary properties.
b
Visor materials tested shall be inspected for visible degradation. If the material shows change of
optical clarity or transparency, 5.6.3 shall be done. This test shall be carried out for all the chemicals
the manufacturer applies for, where an optical change of the material is visible (see 4.2, Table 1).
4.3 Seams, joins, and assemblages
The requirements of this clause apply to the component parts, such as visor or face piece, bootees, gloves or
boots that are integral to the garment.
Seams (suit to suit, bootee to bootee, etc.), joins or assemblages (visor to suit, glove to suit, booties to suit,
boots to suit, etc.) shall fulfil the performance requirements listed in Table 2. If it is not possible to test
adjacent seams or assemblages separately, they may be tested together.
When the strength of a seam is tested, the value shall be taken regardless of where the break occurs.
For each chemical tested, the permeation test shall be carried out using the same diameter cell, the same
collection medium and the same collection system (open or closed loop) as used for testing the suit fabric.
Closure assemblies (e.g. zipper) shall be tested without any cover.
Table 2 — Minimum performance requirements for seams, joins and assemblages
Minimum
performance class
Clothing component (as defined in the
Performance
(seams, joins, Test method reference relevant table in
requirement
assemblages) EN 14325:2004
unless otherwise
stated)
Resistance to permeation
EN 14325:2004
by chemicals (liquids and 3
4.11
Suit material to suit
gases)
material
EN 14325:2004
Seam strength 5
5.5
Resistance to permeation
EN 14325:2004
by chemicals (liquids and d
5 minutes
4.11
Closure assembly
a
gases)
(e.g. zipper)
EN 14325:2004
b
Closure strength
5.5
Resistance to permeation
EN 14325:2004
Assemblages 3
by chemicals (liquids and
4.11
gases)
Resistance to permeation
EN 14325:2004
Visor to suit by chemicals (liquids and 3
4.11
gases)
Resistance to permeation EN 14325:2004
by liquids and gases 4.11
Glove to suit
(permanent)
EN 14325:2004
Mechanical strength 3
5.5
Resistance to permeation
Bootee to suit EN 14325:2004
by chemicals (liquids and 3
(permanent) 4.11
gases)
Resistance to permeation
EN 14325:2004
by chemicals (liquids and 3
Boots to suit
4.11
gases)
(permanent)
Mechanical strength 4
EN 14325:2004
5.5
a
The basic requirement of this clause is for the main closure component (usually a zipper) to be tested for resistance
to permeation In many cases the closure system includes one or two outer protective flaps. The existence of such flaps
does not take away this requirement. In order to avoid too high permeation breakthrough times which may result when
clamping a zipper covered by a flap in a permeation test cell, the main closure component (e.g. zipper) itself shall be
tested for permeation without any flaps, covers etc.
b
The full closure assembly as it is made on the chemical protective clothing shall be tested. It may be necessary to
increase the length of the specimen (as specified in EN ISO 13935-2) to accommodate the full width of the closure
assembly and allow it to be clamped in the surrounding suit material in the tensile testing machine. If the test house
deems it is not possible to take samples from complete CPC separately produced samples made by the manufacturer
using the same construction technique may be tested provided that it can be demonstrated that they are representative
of the chemical protective clothing.
c
The EN ISO 6529 permeation test cell may have to be modified for testing of closures to ensure that the sample can
be sealed in the cell in a leak-proof manner (see Annex D).
d See 4.5 if class 3 is not met.
4.4 Strength of detachable joins
The strength of detachable joins between the suit and detachable parts e.g. between gloves (chemical
resistant) and sleeves, boots and trouser legs, and bonded in facemasks, shall be tested in accordance with
6.4. The force at which the components separate shall be > 100 N.
If additional, separate outer gloves are used to fulfil additional mechanical and thermal requirements the pull
force of the outer gloves shall be tested in accordance with 6.4. The force at which the components separate
shall be > 30 N.
4.5 Permeation requirement for closure
If the closure or closure assembly (usually a zipper) fails to meet class 3, the closure or closure assembly
shall be protected by a flap or cover to reduce the risk of liquid chemical contact.
5 Requirements for the whole suit
5.1 General
The protective clothing shall fulfil the requirements of EN ISO 13688:2013, Clauses 4, 6, 7 and 8.
Chemical protective suits shall fulfil all the applicable requirements given in Table 3 when tested as a
complete suit, or when specified as tested with the related samples. Conditioning shall be carried out in
accordance with 5.3 before testing, unless otherwise indicated in the test method.
Gas-tight chemical protective suits shall fulfil the following requirements when tested as a complete assembly.
The outside of the gas-tight chemical protective suit shall not have any pockets or features similar to pockets.
Pockets and/or features inside the gas-tight chemical protective suit are allowed.
Table 3 — Performance requirements for whole suits
5 Requirements for the whole suit Type 1a Type 1b Type 1c
5.1 General √ √ √
5.2 Compatibility with other equipment √ √ √
5.4 Leak tightness √ √ √
5.5 Inward leakage  √ (1) √
5.6 Visors
5.6.1 General √  √
5.6.2 Distortion of vision √  √
5.6.3 Distortion of vision after chemical exposure √ √ √
5.6.4 Field of vision √  √
5.6.5 Mechanical strength √  √
5.7 Face piece for suits without integral visor √ √
5.8 Pass-through
5.8.1 General (√) (√) (√)
5.8.2 Strength of pass-through (√) (√) √
5.8.3 Performance of pass-through (√) (√) √
5.9 Airline supply system
5.9.1 General (√) (√) √
5.9.2 Couplings (√) (√) √
5.9.3 Connections (√) (√) √
5.9.4 Connection strength (√) (√) √
5.10 Exhaust assembly √ (√) √
5.11 Pressure in chemical protective suit √ (√) √
5.12 External ventilating hose (√) (√) (√)
5.13 Air flow rate
5.13.1 General (√) (√) √
5.13.2 Continuous flow valve (√) (√) √
5.13.3 Warning and measuring facilities (√) (√) √
5.13.4 Compressed air supply tube (√) (√) √
5.14 Carbon dioxide content of inhalation air   √
5.15 Noise associated with air supply to suit (√) (√) √
5.16 Practical Performance √ √ √
√ This requirement shall be fulfilled.
(√) If the component item is fitted, the requirements shall be met.
(1) Inward leakage test is required for Type 1b suits where the facemask is not permanently
attached.
5.2 Compatibility with other equipment
The chemical protective suit shall be compatible with all models of face pieces, air supply systems and head
protection which the manufacturer states are suitable for use with the chemical protective suit. If there is an
interface with other kinds of PPE recommended by the manufacturer and worn in conjunction with the
chemical protective suit, all tests according 6.1 and 6.2 shall be carried out with this additional PPE. The test
result shall be recorded in the test report (see 6.2.3).
5.3 Conditioning to simulate storage conditions
Conditioning to be conducted prior to performing the subsequent whole suit test (see 5.4 and 5.5). The
complete suit shall be exposed:
a) for not less than 4 h to an atmosphere of (60 ± 3) °C at (95 ± 5) % relative humidity; followed by
b) for not less than 4 h to a temperature of (−30 ± 3) °C.
Between step a) and b) and further testing the unit shall be allowed to return to ambient temperature.
If the manufacturer states in their instructions for use, another temperature range beyond these low
temperature and high temperature specification (<-30 °C and > 60 °C), the storage simulation shall be carried
out at 10 degrees more extreme than the manufacturer recommended temperature.
5.4 Leak tightness (static inflation test)
The complete suit shall be tested according to ISO 17491-1:2012, Method A2 both before and after practical
performance test according to 6.2. The pressure drop during the course of the 6-minute test shall not be
greater than 300 Pa (3 mbar).
5.5 Total inward leakage test
When tested in accordance with Annex A the total inward leakage shall not exceed the values given in
Table 4.
Table 4 — Inward leakage performance
Suit type Inward leakage
Type 1a Not required (5.4 applies)
Type 1b with full face mask permanently
Not required (5.4 applies)
joined to the suit (an assemblage)
5.4 plus
Inward leakage test (Annex A) with inward leakage not
Type 1b using a full face mask which is not
greater than 0,05 % when measured within the suit
permanently joined to the suit
being considered as a measure of the total inward
leakage of the whole suit.
Inward leakage test with inward leakage not greater
Type 1b using a full face mask which is not
than 0,05 % when measured according Annex A into

permanently joined to the suit
the full face mask.
5.4 plus
Inward leakage test (Annex A) with inward leakage not
Type 1c
greater than 0,05 % measured within the suit being
considered as a measure of the total inward leakage of
the whole suit.
5.6 Visor
5.6.1 General
All external visors shall comply with 5.6.2 to 5.6.4.
5.6.2 Distortion of vision
Requirements for the distortion of vision are given in Table 5.
Table 5 — Requirements and testing of the visor
Properties of the Requirement Testing
visor
Distortion of vision The loss of sight shall not exceed To read letters on a chart during
two tenths on an optometrical chart the practical performance test
(see also Annex C) according to 6.2.
5.6.3 Distortion of vision after chemical exposure
Requirements for the distortion of vision after chemical exposure are given in Table 6.
Table 6 — Requirements and testing of the visor after chemicals exposure
Properties of the Requirement Testing
visor
Distortion of vision This test shall be carried out for all The chemical exposure shall be
after chemical the chemicals the manufacturer carried out according to 6.7.

exposure applies for, where an optical
To read letters on a chart during
change of the material is visible
the practical performance test
(see 4.2, Table 1).
according to 6.2.
The loss of sight shall not exceed
two tenths on an optometrical chart
(see also Annex C).
5.6.4 Field of vision
The field of vision shall be sufficiently adequate to allow the test subject to carry out all activities of the
practical performance test described in 6.2.
5.6.5 Mechanical strength
The visor shall not be visibly damaged (e.g. indentations, debris or cracks) in such a way as to affect the
performance of the complete device, when tested in accordance with 6.6. After this test the pressure drop test
shall be carried out and shall pass the requirement as specified in 5.4
5.7 Face piece for suits without integral visor
Full face masks complying with class 2 or 3 of EN 136:1998 shall be used. No other respiratory interfaces are
allowed. If the facemask is attached to the suit in a non-permanent manner the seal between the facemask
and suit shall be tested in accordance with the EN ISO 17491-3, “jet test”. The total stain area on the
undergarment shall be less than three times the calibrated stain area. Three samples of facemask to suit joins
shall be tested after conditioning to 5.3.
NOTE The security of this seal, and therefore the outcome of this test, is dependent upon a number of factors
including:
— the shape and size of the wearer’s head;
— the model and size of facemask;
— the size and fit of the suit;
— fine adjustment of straps on both suit and facemask.
5.8 Pass-through
5.8.1 General
If a pass-through is fitted, it shall satisfy the requirements of 5.8.2.
If the pass-through is providing air for breathing it shall also fulfil the requirements of 5.8.3.
If a chemical protective suit is fitted with an airline pass-through, the pass-through, connections and airline to
the suit and body shall be evaluated as part of the practical performance test (see 6.2) and shall not impede
the test subject from completing any task listed in 6.2.
5.8.2 Strength of pass-through
The complete device and its assembly to the suit and body shall withstand a steady force of 1 000 N when
tested in accordance with EN 14594:2005, 7.6.
5.8.3 Performance of pass-through providing breathing air
If the pass-through is designed to provide breathing air it shall comply with the related supplied air standard(s)
EN 14593-1 or EN 14594 as applicable.
5.9 Airline supply system
5.9.1 General
The quality of supplied air shall comply with EN 12021.
If a chemical protective suit in conjunction with an airline supply system providing positive-pressure (e.g.
continuous flow compressed air line breathing apparatus) is to be used a body harness or belt shall be
provided within the suit to which the airlin
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