EN 943-1:2015+A1:2019

SLOVENSKI STANDARD
01-maj-2019
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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 liquides et les particules solides - Partie 1: Exigences de
performance des combinaisons de protection chimique étanches aux gaz (type 1)
Ta slovenski standard je istoveten z: EN 943-1:2015+A1:2019
ICS:
13.340.10 Varovalna obleka Protective clothing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 943-1:2015+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 13.340.10 Supersedes EN 943-1:2015
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 Leistungsanforderungen für Typ 1 (gasdichte)
protection chimique étanches aux gaz (type 1) Chemikalienschutzkleidung
This European Standard was approved by CEN on 27 June 2015 and includes Amendment A1 approved by CEN on 24 October
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 943-1:2015+A1:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Performance requirements . 9
4.1 General . 9
4.2 Materials . 9
4.3 Seams, joins, and assemblages . 12
4.4 Strength of detachable joins . 13
4.5 Permeation requirement for closure . 14
4.6 Gloves . 14
5 Requirements for the whole suit . 14
5.1 General . 14
5.2 Compatibility with other equipment . 16
5.3 !Simulation of extreme storage conditions" . 16
5.4 Leak tightness (static inflation test). 16
5.5 Total inward leakage test . 16
5.6 Visor . 17
5.6.1 General . 17
5.6.2 Distortion of vision . 17
5.6.3 Distortion of vision after chemical exposure . 17
5.6.4 Field of vision . 18
5.6.5 Mechanical strength . 18
5.7 Face piece for suits without integral visor . 18
5.8 Pass-through . 19
5.8.1 General . 19
5.8.2 Strength of pass-through . 19
5.8.3 Performance of pass-through providing breathing air . 19
5.9 Airline supply system . 19
5.9.1 General . 19
5.9.2 Couplings . 19
5.9.3 Connections . 19
5.9.4 Connections strength . 19
5.10 Exhaust assembly . 20
5.11 Pressure in chemical protective suit . 20
5.12 External ventilating hose . 20
5.13 Air flow rate of breathing air and/or ventilating air supply . 20
5.13.1 General . 20
5.13.2 Continuous flow valve for Type 1c breathing air supply . 20
5.13.3 Warning and measuring facilities . 21
5.13.4 Compressed air supply tube . 21
5.14 Carbon dioxide content of inhalation air. 21
5.15 Noise associated with air supply to suit . 21
5.16 Practical Performance . 21
6 Test methods . 22
6.1 Visual inspection . 22
6.2 Practical performance test . 22
6.2.1 General . 22
6.2.2 Work simulation test . 23
6.2.3 Information to be recorded . 24
6.3 Suit pressure test . 24
6.4 Pull test for joins and assemblages . 24
6.5 Exhalation valves . 25
6.5.1 Leak tightness test . 25
6.5.2 Connection between exhalation valve (exhaust assembly) and chemical protective
clothing material . 25
6.6 Mechanical strength test for visor . 26
6.7 Distortion of vision after chemical exposure . 26
7 Marking . 26
8 Information supplied by the manufacturer . 27
Annex A (normative)  Total inward leakage test . 30
A.1 Principle . 30
A.2 Test subjects . 30
A.3 Sodium chloride method . 30
A.3.1 Aerosol generator . 30
A.3.2 Test agent . 30
A.3.3 Detection . 31
A.3.4 Flame photometer . 31
A.3.5 Sample pump . 31
A.3.6 Sampling of chamber concentration . 31
A.4 Sulphur hexafluoride method (SF6) . 32
A.4.1 Test agent . 32
A.4.2 Detection . 33
A.5 Sampling probe . 34
A.6 Test chamber . 34
A.7 Treadmill . 34
A.8 Test procedure . 34
A.8.1 Test subject . 34
A.8.2 Test protocol . 34
A.8.3 Assessment of results . 34
Annex B (normative) Material tests . 36
B.1 General . 36
B.2 Material tests - Resistance to ignition . 36
Annex C (normative) !Distortion of vision" . 37
Annex D (informative) Adapted test cell for testing closures (zipper) . 38
Annex E (informative) Significant technical changes between this document and the
previous edition of this European Standard . 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" . 41
Bibliography . 43

European foreword
This document (EN 943-1:2015+A1:2019) 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 September 2019, and conflicting national standards
shall be withdrawn at the latest by September 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 includes Amendment 1 approved by CEN on 2018-10-24.
This document supersedes !EN 943-1:2015".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
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)
According to the CEN/CENELEC Internal Regulations, the national standards organizations 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 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 hazards, 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. The basic performance criteria for the components such as gloves, boots or respiratory
protective equipment are given in other Standards, supplemantary requirements are provided in this
standard."
Particulate protection is limited to physical penetration of the particulates only.
!Chemicals such as violently air sensitive reagents, unstable explosives and cryogenic liquids have
not been considered since protection against these additional hazards is beyond the scope of this
standard."
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 1073-1:2016+A1:2018, Protective clothing against solid airborne particles including radioactive
contamination — Part 1: Requirements and test methods for compressed air line ventilated protective
clothing, protecting the body and the respiratory tract"
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 14325:2018", 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)
!deleted text"
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
!gas-tight chemical protective 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.
!Pre-conditioning and conditioning shall be carried out in accordance with EN 14325:2018, 4.2 and
4.3 for those materials and components intended to be reused."
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.
!deleted text"
Materials of construction shall comply with all subsections of EN ISO 13688:2013, 4.2.
!Where safety footwear is tested for permeation resistance, the test specimen shall be taken from the
thinnest point of the footwear above the join to the sole."
Table 1 — Minimum performance requirements of Type 1 chemical protective clothing
Minimum performance
class (as defined in the
Clothing Performance
Test method reference relevant table in
component requirement
!EN 14325:2018"
unless otherwise stated)
Abrasion
4.4 of !EN 14325:2018" 3
resistance
Flex cracking
4.5 of !EN 14325:2018" 1
resistance
Flex cracking
at –30 °C 4.6 of !EN 14325:2018" 2
(optional)
Trapezoidal
4.7 of !EN 14325:2018" 3
tear resistance
Tensile
Garment
4.9 of !EN 14325:2018" 3
strength
Puncture 4.10 of
resistance !EN 14325:2018"
Resistance to
permeation by
4.11 of
chemicals 3
!EN 14325:2018"
(liquids and
gases)
Resistance to 4.14 of
See B.2
ignition !EN 14325:2018"
Minimum performance
class (as defined in the
Clothing Performance
Test method reference relevant table in
component requirement
!EN 14325:2018"
unless otherwise stated)
Abrasion
4.4 of !EN 14325:2018" 3
resistance
Flex cracking
4.5 of !EN 14325:2018" 1
Bootees
resistance
(If made
Flex cracking
from
at –30 °C 4.6 of !EN 14325:2018" 2
different
(optional)
material
than the
Resistance to
suit)
permeation by
4.11 of
chemicals 3
!EN 14325:2018"
(liquids and
gases)
Abrasion
4.4 of !EN 14325:2018" 3
resistance
Trapezoidal
4.7 of !EN 14325:2018" 3
tear resistance
Integral
Puncture 4.10 of
overshoe
resistance !EN 14325:2018"
(upper)
Resistance to
permeation by
4.11 of
chemicals 3
!EN 14325:2018"
(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
4.11 of
Boots chemicals 3
!EN 14325:2018"
(liquids and
gases)
Resistance to
permeation by
4.11 of
chemicals 3
!EN 14325:2018"
(liquids and
Gloves
gases)
Mechanical
EN 388 See table footnote a
a
resistance
Resistance to
Visor,
permeation by
!deleted
4.11 of
chemicals
text", face
!EN 14325:2018"
(liquids and
seal (if
b
gases)
fitted)
c
!"
5.6.5 of EN 943–1 comply
Mechanical
Minimum performance
class (as defined in the
Clothing Performance
Test method reference relevant table in
component requirement
!EN 14325:2018"
unless otherwise stated)
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).
c
! The testing applies to visors and face seals that are fitted and exposed to the
environment during intended use."
4.3 Seams, joins, and assemblages
!deleted text"
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.
!deleted text"
Table 2 — Minimum performance requirements for seams, joins and assemblages
Minimum
performance class
Clothing component (as defined in the
Performance Test method
(seams, joins, relevant table in
requirement reference
assemblages) !EN 14325:2018"
unless otherwise
stated)
Resistance to
permeation by !EN 14325:2018"
chemicals (liquids and 4.11
Suit material to suit
gases)
material
!EN 14325:2018"
Seam strength 5
5.5
Resistance to
permeation by
!EN 14325:2018"
d
5 minutes
chemicals (liquids and
4.11
Closure assembly
a
gases)
(e.g. zipper)
!EN 14325:2018"
b
Closure strength
5.5
Resistance to
permeation by !EN 14325:2018"
Assemblages 3
chemicals (liquids and 4.11
gases)
Resistance to
permeation by !EN 14325:2018"
Visor to suit 3
chemicals (liquids and 4.11
gases)
Resistance to
!EN 14325:2018"
permeation by liquids 3
4.11
Glove to suit
and gases
(permanent)
!EN 14325:2018"
Mechanical strength 3
5.5
Resistance to
Bootee to suit permeation by !EN 14325:2018"
(permanent) chemicals (liquids and 4.11
gases)
Resistance to
permeation by !EN 14325:2018"
chemicals (liquids and 4.11
Boots to suit
gases)
(permanent)
!EN 14325:2018"
Mechanical strength 4
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 !misleading 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 !deleted text" 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, !deleted text", 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.
!
4.6 Gloves
Only EN ISO 374-1 approved gloves shall be used. The gloves may be modified be fitted to the suit. The
additional requirements of this standard shall be fulfilled. The puncture, cut and abrasion resistance of
the gloves or glove combination used shall be reported as required in EN 943-1, 8, l).
NOTE As EN ISO 374-1 has only very limited mechanical and thermal requirements it may be appropriate to
use an over-glove e.g. according to EN 659 to provide greater mechanical or thermal protection."
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.
!Where not otherwise specified, all tests shall be performed on two specimens
(suits/components/materials as applicable)."
Chemical protective suits shall fulfil all the applicable requirements given in Table 3 !deleted text".
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 !deleted !deleted √
text" text"
5.13.3 Warning and measuring facilities !deleted !deleted √
text" text"
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 √ √ √
5 Requirements for the whole suit Type 1a Type 1b Type 1c
√ 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
!All items necessary to use with the suits shall be compatible (see 5.16, 6.2 and 8 k)."
!
5.3 Simulation of extreme 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 !suit" shall be allowed to return to ambient
temperature.
!deleted text"
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)
Type 1b using a full face mask which is not 5.4 plus
permanently joined to the suit
Inward leakage test (Annex A) with inward
Face mask used with Type 1 b suits worn as leakage not greater than 0,05 % when
intended by the manufacturer, doesn’t need to measured within the suit being considered as
be retested for IL in the breathing zone in a measure of the total inward leakage of the
accordance with the requirement clause of whole suit .
this standard. For the design and use is

identical with EN 136 type tested models. The
suits have to be tested.
Suit type Inward leakage
Type 1b using a full face mask which is not 5.4 plus
permanently joined to the suit
Inward leakage test (Annex A) with inward
Face masks worn not directly on the user’s leakage not greater than 0,05 % when
skin, but with means of suit material or barrier measured within the suit being considered as
material between skin and sealing line of the a measure of the total inward leakage of the
masks, need to be reevaluated for IL in the whole suit and inward leakage test with
breathing zone, due to the modified sealing inward leakage not greater than 0,05 % when
system. measured according Annex A into the full face
mask.
Type 1c 5.4 plus
Inward leakage test (Annex A) with inward
leakage not 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 the practical performance test
chart (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 Th
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