SIST EN ISO 9151:2017
(Main)Protective clothing against heat and flame - Determination of heat transmission on exposure to flame (ISO 9151:2016, Corrected version 2017-03)
Protective clothing against heat and flame - Determination of heat transmission on exposure to flame (ISO 9151:2016, Corrected version 2017-03)
This International Standard specifies a method for comparing the heat transmission through materials or
material assemblies used in protective clothing. Materials are ranked by calculation of a heat transfer index,
which is an indication of the relative heat transmission under the specified test conditions. The heat transfer
index should not be taken as a measure of the protection time given by the tested materials under actual use
conditions.
Schutzkleidung gegen Hitze und Flammen - Bestimmung des Wärmedurchgangs bei Flammeneinwirkung (ISO 9151:2016, korrigierte Fassung 2017-03)
Diese Internationale Norm legt ein Verfahren für den Vergleich des Wärmedurchgangs bei in Schutzkleidung verwendeten Materialien oder Materialkombinationen fest. Durch Berechnung des Wärmeübergangsindex, der als Anhaltspunkt für den relativen Wärmedurchgang unter den festgelegten Prüfbedingungen dient, wird eine Einstufung der Materialien vorgenommen. Der Wärmeübergangsindex sollte nicht als Maß für die angegebene Schutzdauer der geprüften Materialien unter tatsächlichen Einsatzbedingungen angesehen werden.
Vêtements de protection contre la chaleur et les flammes - Détermination de la transmission de chaleur à l'exposition d'une flamme (ISO 9151:2016, Version corrigée 2017-03)
ISO 9151:2016 spécifie une méthode qui vise à déterminer la transmission de chaleur à travers des matériaux ou des assemblages de matériaux utilisés dans les vêtements de protection. Cette méthode permet ensuite de classer les matériaux en comparant les indices de transmission de chaleur, lesquels constituent une indication de la transmission de chaleur relative dans les conditions d'essai spécifiées. Il convient de ne pas considérer l'indice de transmission de chaleur comme une mesure de la durée de protection offerte par les matériaux soumis à essai dans des conditions réelles d'utilisation.
Varovalna obleka pred učinki toplote in ognja - Določanje prenosa toplote pri izpostavljenosti plamenu (ISO 9151:2016, popravljena verzija 2017-03)
Ta mednarodni standard določa metodo za primerjavo prenosa toplote skozi materiale ali kombinacije materialov, ki se uporabljajo pri zaščitnih oblekah. Materiali so razvrščeni s pomočjo izračuna indeksa prenosa toplote, ki kaže relativni prenos toplote pri določenih preskusnih pogojih. Indeks prenosa toplote naj se ne uporablja kot merilo za čas trajanja zaščite, ki ga omogočajo preskusni materiali pri dejanskih pogojih uporabe.
General Information
Relations
Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 9151:2017
01-marec-2017
Nadomešča:
SIST EN 367:1996
SIST EN 367:1996/AC:2000
Varovalna obleka pred učinki toplote in ognja - Določanje prenosa toplote pri
izpostavljenosti plamenu (ISO 9151:2016, popravljena verzija 2017-03)
Protective clothing against heat and flame - Determination of heat transmission on
exposure to flame (ISO 9151:2016, Corrected version 2017-03)
Schutzkleidung gegen Hitze und Flammen - Bestimmung des Wärmedurchgangs bei
Flammeneinwirkung (ISO 9151:2016, korrigierte Fassung 2017-03)
Vêtements de protection contre la chaleur et les flammes - Détermination de la
transmission de chaleur à l'exposition d'une flamme (ISO 9151:2016, Version corrigée
2017-03)
Ta slovenski standard je istoveten z: EN ISO 9151:2016
ICS:
13.340.10 Varovalna obleka Protective clothing
SIST EN ISO 9151:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 9151:2017
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SIST EN ISO 9151:2017
EN ISO 9151
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 13.340.10 Supersedes EN 367:1992
English Version
Protective clothing against heat and flame - Determination
of heat transmission on exposure to flame (ISO 9151:2016,
Corrected version 2017-03)
Vêtements de protection contre la chaleur et les Schutzkleidung gegen Hitze und Flammen -
flammes - Détermination de la transmission de chaleur Bestimmung des Wärmedurchgangs bei
à l'exposition d'une flamme (ISO 9151:2016, Version Flammeneinwirkung (ISO 9151:2016, korrigierte
corrigée 2017-03) Fassung 2017-03)
This European Standard was approved by CEN on 6 November 2016.
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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9151:2016 E
worldwide for CEN national Members.
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC . 4
2
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
European foreword
This document (EN ISO 9151:2016) has been prepared by Technical Committee ISO/TC 94 "Personal
safety - Protective clothing and equipment" in collaboration with 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 June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
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.
This document supersedes EN 367:1992.
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.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 9151:2016, Corrected version 2017-03 has been approved by CEN as EN ISO 9151:2016
without any modification.
3
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC
This European Standard has been prepared under a Commission’s standardization request M/031 to
provide one voluntary means of conforming to essential requirements of Directive 89/686/EEC on the
approximation of the laws of the Member States relating to personal protective equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this International Standard and Annex II of the Directive
89/686/EEC Personal Protective Equipment
Clause(s)/subclause(s) of
Essential Requirements of Directive
this International Remarks/Notes
89/686/EEC
Standard
Together with the
3.6, Protection against heat and/or fire Complete Standard requirements in the product
standard
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
4
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SIST EN ISO 9151:2017
INTERNATIONAL ISO
STANDARD 9151
Second edition
2016-11-15
Corrected version
2017-03
Protective clothing against heat
and flame — Determination of heat
transmission on exposure to flame
Vêtements de protection contre la chaleur et les flammes —
Détermination de la transmission de chaleur à l’exposition d’une
flamme
Reference number
ISO 9151:2016(E)
©
ISO 2016
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 General . 2
5.2 Gas burner . . 2
5.3 Copper disc calorimeter and mounting block . 2
5.4 Specimen support frame . 5
5.5 Calorimeter location plate. 6
5.6 Support stand . 6
5.7 Recorder . 8
5.8 Flat rigid template . 8
6 Precautions . 9
7 Sampling . 9
7.1 Specimen dimensions . 9
7.2 Number of specimens . 9
8 Conditioning and testing atmospheres . 9
8.1 Conditioning atmosphere . 9
8.2 Testing atmosphere. 9
9 Test procedure . 9
9.1 Preparation and calibration . 9
9.1.1 Preliminary procedures . 9
9.1.2 Regulation of the incident heat flux .10
9.2 Test specimen mounting .11
9.3 Test specimen exposure .11
10 Test report (see Annex C) .12
Annex A (informative) Significance of the heat transfer test .13
Annex B (informative) Availability of materials .15
Annex C (informative) Example test report form .17
© ISO 2016 – All rights reserved iii
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SIST EN ISO 9151:2017
ISO 9151:2016(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. 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. 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 on 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 the following URL: http:// 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 second edition cancels and replaces the first edition (ISO 9151:1995), of which Clauses/subclauses
2, 3.3, 5.1, 5.2, 5.3, 5.6, 6, 8.1, 8.2, 9.1.2, 9.3.1, 9.3.2, 10, all figures, and Annexes A and B have been
technically revised. Tolerances have been added to specified dimensions where appropriate. Results of
a recent inter-laboratory trial have been added to Annex A.
To improve reproducibility, the following major modifications have been made from the previous
version of this test method:
a) The percentage minimum purity of the propane used has been provided (see 5.2);
b) Two alternative methods for constructing the calorimeter are described with additional
information on the figures; additional instructions are given for inserting the calorimeter into the
mounting block; and the total mass of the calorimeter and mounting block is specified (see 5.3);
c) Tolerances for the dimensions of machined parts have been added to text and drawings where
required;
d) Control of air movement during testing is specified (see Clause 6);
e) The specified relative humidity and temperature ranges for the conditioning and testing
atmospheres have been changed (see 8.1 and 8.2);
f) Additional procedures for calibration and stabilization of thermocouple temperature, including a
procedure to check on the linearity of the thermocouple output during regulation of the incident
heat flux density, have been added (see 9.1.1 and 9.1.2); and
g) Test report requirements have been revised (see Clause 10).
iv © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
This corrected version of ISO 9151:2016 includes the following changes:
— in 5.3, second paragraph, the tolerance’s value has been corrected from “± 002” to “± 0,002”;
— in 9.3.3, second paragraph, the reference to Annex A has been corrected to Annex B.
© ISO 2016 – All rights reserved v
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Introduction
Heat transmission through clothing is largely determined by its thickness including any air gaps
trapped between adjacent layers. The air gaps can vary considerably in different areas of the same
clothing assembly. The present method provides a grading of materials when tested under standard
test conditions without an air gap.
vi © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
INTERNATIONAL STANDARD ISO 9151:2016(E)
Protective clothing against heat and flame —
Determination of heat transmission on exposure to flame
1 Scope
This document specifies a method for determining the heat transmission through materials or
material assemblies used in protective clothing. Materials may then be ranked by comparing heat
transfer indices, which provide an indication of the relative heat transmission under the specified test
conditions. The heat transfer index should not be taken as a measure of the protection time given by the
tested materials under actual use conditions.
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 5725-2, Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method
for the determination of repeatability and reproducibility of a standard measurement method
IEC 60584-1, Thermocouples — Part 1: Reference tables
IEC 60584-3, Thermocouples — Part 3: Extension and compensating cables — Tolerances and
identification systems
3 Terms and definitions
For the purposes of this document, the following definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
test specimen
all the layers of fabric or other materials arranged in the order and orientation as used in practice,
including, where applicable, undergarment fabrics
3.2
incident heat flux
Q
amount of energy applied to the exposed face of the specimen, per unit time
2
Note 1 to entry: The unit is kW/m .
© ISO 2016 – All rights reserved 1
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
3.3
heat transfer index
HTI
mean time, t , in whole seconds to achieve a temperature rise of (24 ± 0,2) °C when tested by
m
the method described in this document using a copper disc of mass (18 ± 0,05) g and incident heat flux
2
of (80 ± 2) kW/m
Note 1 to entry: Within the context of this document, the heat transfer index refers to the heat transfer between
a flame and the test specimen. See Annex A.
4 Principle
A horizontally oriented test specimen is restrained from moving and subjected to an incident heat
2
flux of (80 ± 2) kW/m from the flame of a gas burner placed beneath it. The heat passing through
the specimen is measured by means of a small copper calorimeter on top of and in contact with the
specimen. The time, in seconds, for the temperature in the calorimeter to rise (24 ± 0,2) °C is recorded.
The mean result for three test specimens is calculated as the “heat transfer index (flame)”.
5 Apparatus
5.1 General
The apparatus consists of:
— a Meker gas burner;
— a copper disc calorimeter;
— a specimen support frame;
— a calorimeter location plate;
— a support stand;
— suitable measuring and recording equipment;
— a template.
5.2 Gas burner
A flat topped Meker burner with a perforated top area of (38 ± 2) mm diameter and a jet suitable for
propane gas shall be used. (See Annex B for possible sources.)
Commercial grade propane of 95 % minimum purity shall be used with the flow being controlled by a
fine control valve and flow meter. Alternatively, other gases may be used but such use shall be reported
as part of the test report.
5.3 Copper disc calorimeter and mounting block
Copper disc calorimeter, consisting of a disc of copper of minimum 99 % purity, having a diameter of
(40 ± 0,05) mm and thickness 1,6 mm, and a mass of (18 ± 0,05) g. The disc shall be weighed before
drilling and assembly.
The calorimeter shall be constructed as indicated in Figure 1 (method A) or Figure 2 (method B).
Insulated copper-constantan thermocouple wire in accordance with IEC 60584-1 and IEC 60584-
3, diameter 0,254 mm ± 0,002 mm shall be used. The constantan wire shall be either inserted into
predrilled hole in the centre of the calorimeter and soldered in place with a minimum of solder
(method A) or shall be soldered to the back face of the calorimeter as shown in Figure 2 (method B).
2 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
The copper wire shall be attached in the same manner, 15 mm to 18 mm from the centre, so as not to
interfere with the seating of disc in the mounting block.
NOTE The specified thermocouple wire is equivalent to Type T – 36 gauge.
The calorimeter is located in a mounting block which shall consist of a 89 mm diameter circular piece
of asbestos-free non-combustible heat insulating board (See Annex B) of nominal thickness 13 mm (see
Figure 3). The thermal characteristics shall comply with the following specification:
3
Density (750 ± 100) kg/m
Thermal conductivity (0,180 ± 0,018) W/(m·K)
A circular cavity is machined in the centre of the block to accommodate the disc and an air gap as shown
in Figure 3. The disc is held in position using small stainless steel pins (0,45 mm diameter or less)
which protrude through the back of the insulating block with sufficient length that they can be used to
secure the disc (method A – Figure 4). The mounting pins shall be stainless steel, soft soldered to the
calorimeter using the minimum quantity of solder necessary. If method B of mounting the calorimeter
is chosen the calorimeter shall be attached to the mounting block with a suitable high temperature
adhesive.
The face of the copper disc shall be flush with the surface of the mounting block. It shall also be coated
with a thin layer of an optically black paint having a coefficient of absorption, α, greater than 0,9 (see
Annex B).
The total mass of the calorimeter/mounting block assembly shall be (80 ± 10) g.
Dimensions in millimetres
a) Calorimeter assembly with mounting pins omitted for clarity
© ISO 2016 – All rights reserved 3
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
b) Copper calorimeter showing location c) Copper calorimeter assembly
of mounting pins (additional thermocouple
wires omitted for clarity)
Key
1 thermocouple wire 5 mounting pin
2 blind hole for mounting pin 6 copper wire
3 blind hole for thermocouple 7 copper disk
4 constantan wire X detail scale 5:1
Figure 1 — Copper calorimeter (method A)
Dimensions in millimetres
Key
1 copper thermocouple wire, as close as practical to edge of calorimeter
2 constantan thermocouple wire, approximately centre of calorimeter
Figure 2 — Alternative calorimeter construction (method B) (additional thermocouple wires
omitted for clarity)
4 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Key
1 heat insulation board
2 cavity
Figure 3 — Calorimeter mounting block (informative)
Key
1 copper calorimeter
2 0,45 mm stainless pin
3 2-56 set screw
4 thermocouple wires
5 sensor mounting block
6 flat washer
7 2-56 hex nut
Figure 4 — Calorimeter and mounting block assembly (method A shown)
5.4 Specimen support frame
+05,
Specimen support frame consisting of a piece of mild steel (carbon content < 0,5 %) (150 ) mm
−0
square and (1,6 ± 0,1) mm thick with a (50 ± 0,5) mm square hole in its centre (see Figure 5). Materials
+05,
other than mild steel (e.g. copper) may also be used. Tolerances for machined parts shall be mm to
−0
fit the calorimeter location plate.
© ISO 2016 – All rights reserved 5
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
5.5 Calorimeter location plate
+0
Calorimeter location plate made from a piece of aluminium (149 ) mm square and (6 ±0,1) mm thick
−05,
and having a circular hole 90 mm in diameter located centrally (see Figure 6). The plate shall have a
+0
mass of (264 ± 13) g. Tolerances for machined parts shall be mm to fit the specimen support frame.
−05,
5.6 Support stand
Support stand, used to locate the specimen and calorimeter relative to the burner. The top face of the
specimen support stand shall be (50 ± 2) mm above and parallel with the top face of the burner, with
the axis of the burner aligned with the centre of the opening in the support frame (see Figure 7).
It is convenient to have a shutter between the burner and the specimen support frame. If used, the
shutter shall open completely in less than 0,5 s and shall be operated immediately after placing the
burner in position. It is useful if the positioning of the burner, or the opening of the shutter, if fitted, can
be used to record the start of the exposure.
Dimensions in millimetres
Figure 5 — Specimen support frame
6 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Figure 6 — Calorimeter location plate
© ISO 2016 – All rights reserved 7
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Key
1 sensor mounting block
2 copper calorimeter
3 thermocouple wires
4 sensor locating plate
5 support stand
6 Meker burner
Figure 7 — Equipment setup
5.7 Recorder
The output of the thermocouple shall be read using a recorder or data logger with a temperature
resolution of at least 0,25 °C and a time resolution of a minimum of 0,2 s.
5.8 Flat rigid template
Flat rigid template, with dimensions 140 mm × 140 mm, used for cutting material specimens.
8 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
6 Precautions
Perform the test in a hood or ventilated area to carry away the fumes. The test location should be
surrounded by a volume of air sufficient not to be affected by any reduction of oxyg
...
SLOVENSKI STANDARD
SIST EN ISO 9151:2017
01-marec-2017
1DGRPHãþD
SIST EN 367:1996
SIST EN 367:1996/AC:2000
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Protective clothing against heat and flame - Determination of heat transmission on
exposure to flame (ISO 9151:2016)
Schutzkleidung gegen Hitze und Flammen - Bestimmung des Wärmedurchgangs bei
Flammeneinwirkung (ISO 9151:2016)
Vêtements de protection contre la chaleur et les flammes - Détermination de la
transmission de chaleur à l'exposition d'une flamme (ISO 9151:2016)
Ta slovenski standard je istoveten z: EN ISO 9151:2016
ICS:
13.340.10 Varovalna obleka Protective clothing
SIST EN ISO 9151:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 9151:2017
---------------------- Page: 2 ----------------------
SIST EN ISO 9151:2017
EN ISO 9151
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 13.340.10 Supersedes EN 367:1992
English Version
Protective clothing against heat and flame - Determination
of heat transmission on exposure to flame (ISO
9151:2016)
Vêtements de protection contre la chaleur et les Schutzkleidung gegen Hitze und Flammen -
flammes - Détermination de la transmission de chaleur Bestimmung des Wärmedurchgangs bei
à l'exposition d'une flamme (ISO 9151:2016) Flammeneinwirkung (ISO 9151:2016)
This European Standard was approved by CEN on 6 November 2016.
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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9151:2016 E
worldwide for CEN national Members.
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC . 4
2
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
European foreword
This document (EN ISO 9151:2016) has been prepared by Technical Committee ISO/TC 94 "Personal
safety - Protective clothing and equipment" in collaboration with 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 June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
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.
This document supersedes EN 367:1992.
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.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 9151:2016 has been approved by CEN as EN ISO 9151:2016 without any modification.
3
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SIST EN ISO 9151:2017
EN ISO 9151:2016 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC
This European Standard has been prepared under a Commission’s standardization request M/031 to
provide one voluntary means of conforming to essential requirements of Directive 89/686/EEC on the
approximation of the laws of the Member States relating to personal protective equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this International Standard and Annex II of the Directive
89/686/EEC Personal Protective Equipment
Essential Requirements of Directive Clause(s)/subclause(s) of
Remarks/Notes
89/686/EEC this International Standard
Together with the
3.6, Protection against heat and/or fire Complete Standard requirements in the product
standard
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
4
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SIST EN ISO 9151:2017
INTERNATIONAL ISO
STANDARD 9151
Second edition
2016-11-15
Protective clothing against heat
and flame — Determination of heat
transmission on exposure to flame
Vêtements de protection contre la chaleur et les flammes —
Détermination de la transmission de chaleur à l’exposition d’une
flamme
Reference number
ISO 9151:2016(E)
©
ISO 2016
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 General . 2
5.2 Gas burner . . 2
5.3 Copper disc calorimeter and mounting block . 2
5.4 Specimen support frame . 5
5.5 Calorimeter location plate. 6
5.6 Support stand . 6
5.7 Recorder . 8
5.8 Flat rigid template . 8
6 Precautions . 9
7 Sampling . 9
7.1 Specimen dimensions . 9
7.2 Number of specimens . 9
8 Conditioning and testing atmospheres . 9
8.1 Conditioning atmosphere . 9
8.2 Testing atmosphere. 9
9 Test procedure . 9
9.1 Preparation and calibration . 9
9.1.1 Preliminary procedures . 9
9.1.2 Regulation of the incident heat flux .10
9.2 Test specimen mounting .11
9.3 Test specimen exposure .11
10 Test report (see Annex C) .12
Annex A (informative) Significance of the heat transfer test .13
Annex B (informative) Availability of materials .15
Annex C (informative) Example test report form .16
© ISO 2016 – All rights reserved iii
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SIST EN ISO 9151:2017
ISO 9151:2016(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. 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. 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 on 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 the following URL: http://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 second edition cancels and replaces the first edition (ISO 9151:1995), of which Clauses/subclauses
2, 3.3, 5.1, 5.2, 5.3, 5.6, 6, 8.1, 8.2, 9.1.2, 9.3.1, 9.3.2, 10, all figures, and Annexes A and B have been
technically revised. Tolerances have been added to specified dimensions where appropriate. Results of
a recent inter-laboratory trial have been added to Annex A.
To improve reproducibility, the following major modifications have been made from the previous
version of this test method:
a) The percentage minimum purity of the propane used has been provided (see 5.2);
b) Two alternative methods for constructing the calorimeter are described with additional
information on the figures; additional instructions are given for inserting the calorimeter into the
mounting block; and the total mass of the calorimeter and mounting block is specified (see 5.3);
c) Tolerances for the dimensions of machined parts have been added to text and drawings where
required;
d) Control of air movement during testing is specified (see Clause 6);
e) The specified relative humidity and temperature ranges for the conditioning and testing
atmospheres have been changed (see 8.1 and 8.2);
f) Additional procedures for calibration and stabilization of thermocouple temperature, including a
procedure to check on the linearity of the thermocouple output during regulation of the incident
heat flux density, have been added (see 9.1.1 and 9.1.2); and
g) Test report requirements have been revised (see Clause 10).
iv © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Introduction
Heat transmission through clothing is largely determined by its thickness including any air gaps
trapped between adjacent layers. The air gaps can vary considerably in different areas of the same
clothing assembly. The present method provides a grading of materials when tested under standard
test conditions without an air gap.
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SIST EN ISO 9151:2017
INTERNATIONAL STANDARD ISO 9151:2016(E)
Protective clothing against heat and flame —
Determination of heat transmission on exposure to flame
1 Scope
This document specifies a method for determining the heat transmission through materials or
material assemblies used in protective clothing. Materials may then be ranked by comparing heat
transfer indices, which provide an indication of the relative heat transmission under the specified test
conditions. The heat transfer index should not be taken as a measure of the protection time given by the
tested materials under actual use conditions.
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 5725-2, Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method
for the determination of repeatability and reproducibility of a standard measurement method
IEC 60584-1, Thermocouples — Part 1: Reference tables
IEC 60584-3, Thermocouples — Part 3: Extension and compensating cables — Tolerances and
identification systems
3 Terms and definitions
For the purposes of this document, the following definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
test specimen
all the layers of fabric or other materials arranged in the order and orientation as used in practice,
including, where applicable, undergarment fabrics
3.2
incident heat flux
Q
amount of energy applied to the exposed face of the specimen, per unit time
2
Note 1 to entry: The unit is kW/m .
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
3.3
heat transfer index
HTI
mean time, t , in whole seconds to achieve a temperature rise of (24 ± 0,2) °C when tested by
m
the method described in this document using a copper disc of mass (18 ± 0,05) g and incident heat flux
2
of (80 ± 2) kW/m
Note 1 to entry: Within the context of this document, the heat transfer index refers to the heat transfer between
a flame and the test specimen. See Annex A.
4 Principle
A horizontally oriented test specimen is restrained from moving and subjected to an incident heat
2
flux of (80 ± 2) kW/m from the flame of a gas burner placed beneath it. The heat passing through
the specimen is measured by means of a small copper calorimeter on top of and in contact with the
specimen. The time, in seconds, for the temperature in the calorimeter to rise (24 ± 0,2) °C is recorded.
The mean result for three test specimens is calculated as the “heat transfer index (flame)”.
5 Apparatus
5.1 General
The apparatus consists of:
— a Meker gas burner;
— a copper disc calorimeter;
— a specimen support frame;
— a calorimeter location plate;
— a support stand;
— suitable measuring and recording equipment;
— a template.
5.2 Gas burner
A flat topped Meker burner with a perforated top area of (38 ± 2) mm diameter and a jet suitable for
propane gas shall be used. (See Annex B for possible sources.)
Commercial grade propane of 95 % minimum purity shall be used with the flow being controlled by a
fine control valve and flow meter. Alternatively, other gases may be used but such use shall be reported
as part of the test report.
5.3 Copper disc calorimeter and mounting block
Copper disc calorimeter, consisting of a disc of copper of minimum 99 % purity, having a diameter of
(40 ± 0,05) mm and thickness 1,6 mm, and a mass of (18 ± 0,05) g. The disc shall be weighed before
drilling and assembly.
The calorimeter shall be constructed as indicated in Figure 1 (method A) or Figure 2 (method B).
Insulated copper-constantan thermocouple wire in accordance with IEC 60584-1 and IEC 60584-3,
diameter 0,254 mm ± 002 mm shall be used. The constantan wire shall be either inserted into predrilled
hole in the centre of the calorimeter and soldered in place with a minimum of solder (method A) or
shall be soldered to the back face of the calorimeter as shown in Figure 2 (method B). The copper wire
2 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
shall be attached in the same manner, 15 mm to 18 mm from the centre, so as not to interfere with the
seating of disc in the mounting block.
NOTE The specified thermocouple wire is equivalent to Type T – 36 gauge.
The calorimeter is located in a mounting block which shall consist of a 89 mm diameter circular piece
of asbestos-free non-combustible heat insulating board (See Annex B) of nominal thickness 13 mm (see
Figure 3). The thermal characteristics shall comply with the following specification:
3
Density (750 ± 100) kg/m
Thermal conductivity (0,180 ± 0,018) W/(m·K)
A circular cavity is machined in the centre of the block to accommodate the disc and an air gap as shown
in Figure 3. The disc is held in position using small stainless steel pins (0,45 mm diameter or less)
which protrude through the back of the insulating block with sufficient length that they can be used to
secure the disc (method A – Figure 4). The mounting pins shall be stainless steel, soft soldered to the
calorimeter using the minimum quantity of solder necessary. If method B of mounting the calorimeter
is chosen the calorimeter shall be attached to the mounting block with a suitable high temperature
adhesive.
The face of the copper disc shall be flush with the surface of the mounting block. It shall also be coated
with a thin layer of an optically black paint having a coefficient of absorption, α, greater than 0,9 (see
Annex B).
The total mass of the calorimeter/mounting block assembly shall be (80 ± 10) g.
Dimensions in millimetres
a) Calorimeter assembly with mounting pins omitted for clarity
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
b) Copper calorimeter showing location c) Copper calorimeter assembly
of mounting pins (additional thermocouple
wires omitted for clarity)
Key
1 thermocouple wire 5 mounting pin
2 blind hole for mounting pin 6 copper wire
3 blind hole for thermocouple 7 copper disk
4 constantan wire X detail scale 5:1
Figure 1 — Copper calorimeter (method A)
Dimensions in millimetres
Key
1 copper thermocouple wire, as close as practical to edge of calorimeter
2 constantan thermocouple wire, approximately centre of calorimeter
Figure 2 — Alternative calorimeter construction (method B) (additional thermocouple wires
omitted for clarity)
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Key
1 heat insulation board
2 cavity
Figure 3 — Calorimeter mounting block (informative)
Key
1 copper calorimeter
2 0,45 mm stainless pin
3 2-56 set screw
4 thermocouple wires
5 sensor mounting block
6 flat washer
7 2-56 hex nut
Figure 4 — Calorimeter and mounting block assembly (method A shown)
5.4 Specimen support frame
+05,
Specimen support frame consisting of a piece of mild steel (carbon content < 0,5 %) (150 ) mm
−0
square and (1,6 ± 0,1) mm thick with a (50 ± 0,5) mm square hole in its centre (see Figure 5). Materials
+05,
other than mild steel (e.g. copper) may also be used. Tolerances for machined parts shall be mm to
−0
fit the calorimeter location plate.
© ISO 2016 – All rights reserved 5
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
5.5 Calorimeter location plate
+0
Calorimeter location plate made from a piece of aluminium (149 ) mm square and (6 ±0,1) mm thick
−05,
and having a circular hole 90 mm in diameter located centrally (see Figure 6). The plate shall have a
+0
mass of (264 ± 13) g. Tolerances for machined parts shall be mm to fit the specimen support frame.
−05,
5.6 Support stand
Support stand, used to locate the specimen and calorimeter relative to the burner. The top face of the
specimen support stand shall be (50 ± 2) mm above and parallel with the top face of the burner, with
the axis of the burner aligned with the centre of the opening in the support frame (see Figure 7).
It is convenient to have a shutter between the burner and the specimen support frame. If used, the
shutter shall open completely in less than 0,5 s and shall be operated immediately after placing the
burner in position. It is useful if the positioning of the burner, or the opening of the shutter, if fitted, can
be used to record the start of the exposure.
Dimensions in millimetres
Figure 5 — Specimen support frame
6 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Figure 6 — Calorimeter location plate
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
Dimensions in millimetres
Key
1 sensor mounting block
2 copper calorimeter
3 thermocouple wires
4 sensor locating plate
5 support stand
6 Meker burner
Figure 7 — Equipment setup
5.7 Recorder
The output of the thermocouple shall be read using a recorder or data logger with a temperature
resolution of at least 0,25 °C and a time resolution of a minimum of 0,2 s.
5.8 Flat rigid template
Flat rigid template, with dimensions 140 mm × 140 mm, used for cutting material specimens.
8 © ISO 2016 – All rights reserved
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SIST EN ISO 9151:2017
ISO 9151:2016(E)
6 Precautions
Perform the test in a hood or ventilated area to carry away the fumes. The test location should be
surrounded by a volume of air sufficient not to be affected by any reduction of oxygen concentration. It
may be necessary to turn off the exhaust or to shield the apparatus during the test so as not to disturb
the flame. Air movement at the point of test shall be less than 0,2 m/s at the commencement of the test
of each specimen. The equipment becomes hot during testing and some test materials may melt or drip.
Use protective gloves when handling hot objects.
Keep combustible materials away from the burner. Ensure that the solvent used for cleaning the
calorimeter is kept away from hot surfaces and naked flames.
7 Sampling
7
...
SLOVENSKI STANDARD
oSIST prEN ISO 9151:2014
01-februar-2014
9DURYDOQDREOHNDSUHGXþLQNLWRSORWHLQRJQMD'RORþDQMHSUHQRVDWRSORWHSUL
L]SRVWDYOMHQRVWLSODPHQX ,62',6
Protective clothing against heat and flame - Determination of heat transmission on
exposure to flame (ISO/DIS 9151:2013)
Schutzkleidung gegen Hitze und Flammen - Bestimmung des Wärmedurchgangs bei
Flammeneinwirkung (ISO/DIS 9151:2013)
Vêtements de protection contre la chaleur et les flammes - Détermination de la
transmission de chaleur à l'exposition d'une flamme (ISO/DIS 9151:2013)
Ta slovenski standard je istoveten z: prEN ISO 9151
ICS:
13.340.10 Varovalna obleka Protective clothing
oSIST prEN ISO 9151:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 9151:2014
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oSIST prEN ISO 9151:2014
DRAFT INTERNATIONAL STANDARD
ISO/DIS 9151
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:
2013-12-12 2014-05-12
Protective clothing against heat and flame —
Determination of heat transmission on exposure to flame
Vêtements de protection contre la chaleur et les flammes — Détermination de la transmission de chaleur à
l’exposition d’une flamme
[Revision of first edition (ISO 9151:1995)]
ICS: 13.340.10
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 9151:2013(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2013
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oSIST prEN ISO 9151:2014
ISO/DIS 9151:2013(E)
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as
permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract
from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means,
electronic, photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2013 – All rights reserved
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oSIST prEN ISO 9151:2014
ISO/DIS 9151
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Gas burner. . 2
5.2 Copper disc calorimeter and mounting block . 2
5.3 Specimen support frame . 4
5.4 Calorimeter location plate . 4
5.5 Support stand . 6
5.6 Recorder . 7
5.7 Flat rigid template . 7
6 Precautions . 7
7 Sampling . 8
7.1 Specimen dimensions . 8
7.2 Number of specimens . 8
8 Conditioning and testing atmospheres . 8
8.1 Conditioning atmosphere . 8
8.2 Testing atmosphere . 8
9 Test procedure . 8
9.1 Preparation and calibration . 8
9.1.1 Preliminary procedures . 8
9.1.2 Regulation of the exposure heat flux . 8
9.2 Test specimen mounting . 10
9.3 Test specimen exposure. 10
10 Test report . 11
Annex A (informative) Availability of materials . 12
Annex B (informative) Specimen test report form . 13
Annex C (informative) Significance of the heat transfer test . 14
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/ECC . 16
© ISO 2013 – All rights reserved iii
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oSIST prEN ISO 9151:2014
ISO/DIS 9151
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 9151 was prepared by Technical Committee ISO/TC 94, Personal safety -- Protective clothing and
equipment, Subcommittee SC 13, and by Technical Committee CEN/TC 162, Protective clothing including
hand and arm protection and lifejackets in collaboration.
This second edition cancels and replaces the first edition (ISO 9151:1995), of which subclauses 5.1, 5.2, 7.2,
9.1.2, 9.3.2, all figures, and annexes A and B have been technically revised.
Annexes A, B and C of this International Standard are for information only.
iv © ISO 2013 – All rights reserved
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oSIST prEN ISO 9151:2014
ISO/DIS 9151
Introduction
Heat transmission through clothing is largely determined by its thickness including any air gaps trapped
between the different layers. The air gaps can vary considerably in different areas of the same clothing
assembly. The present method provides a grading of materials when tested under standard test conditions
without an air gap.
This second edition of ISO 9151 cancels and replaces ISO 9151:1995. To improve reproducibility, the
following major modifications have been made from the previous version of this test method:
a) A specification of the propane has been provided (para 5.1)
b) Additional instructions are given for inserting the calorimeter into the mounting block (para 5.2)
c) The number of specimens to be tested has been increased from three to five (para 7.2)
d) The temperature of the testing atmosphere has been somewhat limited (para 8.2)
e) A procedure to check on the linearity of the thermocouple output during regulation of the incident heat flux
density has been added (para 9.1.2)
f) Tolerances for the dimensions of machined parts have been added to text and drawings where required.
© ISO 2013 – All rights reserved v
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oSIST prEN ISO 9151:2014
DRAFT INTERNATIONAL STANDARD ISO/DIS 9151
Protective clothing against heat and flame — Determination of
heat transmission on exposure to flame
1 Scope
This International Standard specifies a method for comparing the heat transmission through materials or
material assemblies used in protective clothing. Materials are ranked by calculation of a heat transfer index,
which is an indication of the relative heat transmission under the specified test conditions. The heat transfer
index should not be taken as a measure of the protection time given by the tested materials under actual use
conditions.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All standards are subject to
revision, and parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO
maintain registers of currently valid International Standards.
ISO 139, Textiles - Standard atmospheres for conditioning and testing.
ISO 9162, Petroleum products – Fuel (class F) – Liquefied petroleum gases - Specifications
IEC 60584-1, Thermocouples - Part 1: Reference tables.
3 Definitions
For the purposes of this document, the following definitions apply.
3.1
test specimen
all the layers of fabric or other materiaIs arranged in the order and orientation as used in practice, including,
where applicable, undergarment fabrics.
3.2
incident heat flux
amount of energy incident per unit time on the exposed face of the specimen, expressed in kilowatts per
2
square metre (kW/m ).
3.3
heat transfer index (flame)
whole number calculated from the mean time in seconds to achieve a temperature rise of (24 ± 0,2) °C when
testing by this method using a copper disc of mass (18 ± 0,05) g and a starting temperature of (25 ± 5) °C.
4 Principle
A horizontally oriented test specimen is partially restrained from moving and subjected to an incident heat flux
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of 80 kW/m from the flame of a gas burner placed beneath it. The heat passing through the specimen is
measured by means of a small copper calorimeter on top of and in contact with the specimen. The time, in
seconds, for the temperature in the calorimeter to rise (24 ± 0,2) °C is recorded. The mean result for five test
specimens is calculated as the "heat transfer index (flame)".
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oSIST prEN ISO 9151:2014
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5 Apparatus
The apparatus consists of
⎯ a gas burner;
⎯ a copper disc calorimeter;
⎯ a specimen support frame;
⎯ a calorimeter location plate;
⎯ a support stand;
⎯ suitable measuring equipment;
⎯ a template.
5.1 Gas burner.
A flat topped Meker burner with a perforated top area of (38 ± 2) mm diameter and a jet suitable for propane
gas shall be used. (See Annex A for possible sources.)
Commercial grade propane of 95 % minimum purity [see ISO 9162] shall be used with the flow being
controlled by a fine control valve and flow meter.
5.2 Copper disc calorimeter and mounting block
Copper disc calorimeter, consisting of a disc of copper of at least 99 % purity, having a diameter of (40 + 0.05
mm) and thickness 1,6 mm, and a mass of (18 + 0,05) g. The disc shall be accurately weighed before
assembly.
The calorimeter shall be constructed as indicated in Figure 1. Type T – 36 gauge (insulated copper-
constantan thermocouple wire) shall be used, with the constantan wire inserted into a predrilled hole in the
centre of the calorimeter and soldered in place with a minimum of solder. The copper wire shall be attached
in the same manner, 15-18 mm from the centre, so as not to interfere with the seating of disc in the mounting
block.
The calorimeter is located in a mounting block which shall consist of a 89 mm diameter circular piece of
asbestos-free non-combustible heat insulating board (See Annex A) of nominal thickness 13 mm (see Figure
2). The thermal characteristics shall comply with the following specification:
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Density (750 ± 50) kg/m
Thermal conductivity 0,18 W/(m·K) ± 10 %
A circular cavity is machined in the centre of the block to accommodate the disc and an air gap as shown in
Figure 2. The disc is held in position using small stainless steel pins (0,45 mm diameter or less) which
protrude through the back of the insulating block with sufficient length that they can be used to secure the disk
(see Figure 3). The mounting pins shall be stainless steel, soft soldered to the calorimeter using the minimum
quantity of solder necessary.
The face of the copper disc shall be flush with the surface of the mounting block. It shall also be coated with a
thin layer of an optically black paint having a coefficient of absorption, α, greater than 0,9 (see Annex A).
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oSIST prEN ISO 9151:2014
ISO/DIS 9151
a) calorimeter assembly with mounting pins omitted for clarity
b) copper calorimeter showing location of mounting pins c) copper calorimeter assembly
(thermocouple wires omitted for clarity)
Figure 1 — Copper calorimeter (all dimensions in mm)
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oSIST prEN ISO 9151:2014
ISO/DIS 9151
Figure 2 — Calorimeter mounting block (all dimensions in mm)
Figure 3 — Calorimeter assembly
5.3 Specimen support frame
Specimen support frame consisting of a piece of mild steel (150 + 0,5) mm square and (1,6 + 0,1) mm thick
with a (50 + 0,5) mm square hole in its centre (see Figure 4).
NOTE: materials other than mild steel (e.g., copper) may also be used.
5.4 Calorimeter location plate
Calorimeter location plate made from a piece of aluminium 149 mm square and 6 mm thick and having a
circular hole 90 mm in diameter located centrally (see Figure 5). The plate shall have a mass of (264 ± 13) g.
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