SIST EN ISO 23537-1:2017

SLOVENSKI STANDARD
SIST EN ISO 23537-1:2017
01-januar-2017
1DGRPHãþD
SIST EN 13537:2012
=DKWHYH]DVSDOQHYUHþHGHO7RSORWQHLQGLPHQ]LMVNH]DKWHYH,62

Requirements for sleeping bags - Part 1: Thermal and dimensional requirements (ISO
23537-1:2016)
Anforderungen an Schlafsäcke - Teil 1: Thermische Anforderungen und Abmessungen
(ISO 23537-1:2016)
Exigences pour les sacs de couchage - Partie 1: Exigences thermiques et
dimensionnelles (ISO 23537-1:2016)
Ta slovenski standard je istoveten z: EN ISO 23537-1:2016
ICS:
97.200.30 Oprema za taborjenje in Camping equipment and
tabori camp-sites
SIST EN ISO 23537-1:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 23537-1:2017

---------------------- Page: 2 ----------------------

SIST EN ISO 23537-1:2017


EN ISO 23537-1
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2016
EUROPÄISCHE NORM
ICS 97.200.30 Supersedes EN 13537:2012
English Version

Requirements for sleeping bags - Part 1: Thermal and
dimensional requirements (ISO 23537-1:2016)
Exigences pour les sacs de couchage - Partie 1: Anforderungen an Schlafsäcke - Teil 1: Thermische
Exigences thermiques et dimensionnelles (ISO 23537- Anforderungen und Abmessungen (ISO 23537-1:2016)
1:2016)
This European Standard was approved by CEN on 5 September 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 23537-1:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 23537-1:2017
EN ISO 23537-1:2016 (E)
Contents Page
European foreword . 3
2

---------------------- Page: 4 ----------------------

SIST EN ISO 23537-1:2017
EN ISO 23537-1:2016 (E)
European foreword
This document (EN ISO 23537-1:2016) has been prepared by Technical Committee ISO/TC 83 "Sports
and other recreational facilities and equipment" in collaboration with Technical Committee
CEN/TC 136 “Sports, playground and other recreational facilities and equipment” 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 April 2017, and conflicting national standards shall be
withdrawn at the latest by April 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 13537:2012.
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 23537-1:2016 has been approved by CEN as EN ISO 23537-1:2016 without any
modification.

3

---------------------- Page: 5 ----------------------

SIST EN ISO 23537-1:2017

---------------------- Page: 6 ----------------------

SIST EN ISO 23537-1:2017
INTERNATIONAL ISO
STANDARD 23537-1
First edition
2016-10-01
Requirements for sleeping bags —
Part 1:
Thermal and dimensional
requirements
Exigences pour les sacs de couchage —
Partie 1: Exigences thermiques et dimensionnelles
Reference number
ISO 23537-1:2016(E)
©
ISO 2016

---------------------- Page: 7 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(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

---------------------- Page: 8 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements and test methods . 3
4.1 Water vapour permeability index . 3
4.2 Inside dimensions . 3
4.2.1 Inside length . 3
4.2.2 Maximum inside width . 3
4.2.3 Inside foot width . 3
4.3 Total mass . 3
4.4 Thermal properties . 3
4.4.1 Principle . 3
4.4.2 Thermal manikin . 4
4.4.3 Climatic room . 4
4.4.4 Thermal resistance . 4
4.4.5 Artificial ground . 5
4.4.6 Test samples and pre-treatment . 5
4.4.7 Test procedure . 5
4.4.8 Calculation of temperatures of the range of utility . 5
4.4.9 Calibration of thermal manikin . 7
5 Test report . 7
6 Labelling . 8
6.1 Graph for the range of utility . 8
6.2 Marking . 8
6.3 Information supplied to the consumer . 9
Annex A (normative) Reference values of thermal resistance for calibration .11
Annex B (informative) Precision of test results .13
Annex C (normative) Physiological model for calculation of range of utility .14
Annex D (informative) Warning of misuse of temperature rating .19
Annex E (informative) Rationale .20
© ISO 2016 – All rights reserved iii

---------------------- Page: 9 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(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 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation 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: www.iso.org/iso/foreword.html.
ISO 23537 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 136, Sports, playground and other recreational facilities and equipment in collaboration with ISO
Technical Committee TC 83, Sports and other recreational facilities and equipment, in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
ISO 23537 consists of the following parts, under the general title, Requirements for sleeping bags:
— Part 1: Thermal and dimensional requirements
— Part 2: Fabric and material properties
iv © ISO 2016 – All rights reserved

---------------------- Page: 10 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

Introduction
This is the first edition of this part of ISO 23537. It is based on continued development of the European
Standard, EN 13537.
This International Standard consists of two parts which allows for separate validation of thermal
properties and product and material performance. This separation of parts also allows for continued
development of new product combinations as it encourages manufacturers to consider new
combinations of materials which for example might not be suitable to test by traditional textile physical
tests, but which can still have thermal properties evaluated.
This part of ISO 23537 considers important aspects to the thermal performance of the sleeping bag.
During the development of this part of ISO 23537, consideration was given to the need to continue to
reduce inter laboratory variability of the thermal testing and a number of test parameters have been
tightened as a consequence.
Consideration has also been given to the definition of extreme climate zone which is now referred to as
temperatures <−20 °C.
© ISO 2016 – All rights reserved v

---------------------- Page: 11 ----------------------

SIST EN ISO 23537-1:2017

---------------------- Page: 12 ----------------------

SIST EN ISO 23537-1:2017
INTERNATIONAL STANDARD ISO 23537-1:2016(E)
Requirements for sleeping bags —
Part 1:
Thermal and dimensional requirements
1 Scope
This part of ISO 23537 specifies the requirements and test methods as well as provisions for labelling of
adult sized sleeping bags for use in sports and leisure time activities.
This part of ISO 23537 does not apply to sleeping bags intended for specific purpose such as military
use and extreme climate zone expedition. It does not apply to sleeping bags for children or babies.
NOTE 1 No prediction model exists for the determination of the limiting temperatures based on the thermal
resistance of the sleeping bag for children and babies. Moreover, such a model for testing cannot be developed
because the necessary controlled sleep trials with children or babies in climatic chambers are, out of ethical
reasons, not permitted.
NOTE 2 The limit temperature for extreme climate conditions is seen to be −20 °C.
This part of ISO 23537 describes the method for the assessment of the performance in steady-state
conditions of a sleeping bag with regard to the protection against cold.
NOTE 3 Sleeping bags without homogeneous fillings designed to provide local extra insulation in certain
parts pose issues with the calibration and/or test procedure. Ongoing work continues to provide suitable means
of establishing temperature ratings.
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.
ISO 139, Textiles — Standard atmospheres for conditioning and testing
ISO 1096, Plywood — Classification
ISO 3758, Textiles — Care labelling code using symbols
ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under
steady-state conditions (sweating guarded-hotplate test)
ISO 15831:2004, Clothing — Physiological effects — Measurement of thermal insulation by means of a
thermal manikin
EN 13088, Manufactured articles filled with feather and down — Method for the determination of a filled
product’s total mass and of the mass of the filling



© ISO 2016 – All rights reserved 1

---------------------- Page: 13 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
comfort temperature
T
comf
lower limit of the comfort range, down to which a sleeping bag user with a relaxed posture, such as
lying on their back, is globally in thermal equilibrium and just not feeling cold
Note 1 to entry: For more information, see C.7.3.
3.2
limit temperature
T
lim
lower limit at which a sleeping bag user with a curled up body posture is globally in thermal equilibrium
and just not feeling cold
Note 1 to entry: For more information, see C.7.2.
3.3
extreme temperature
T
ext
very low temperature where the risk of health damage by hypothermia is possible
Note 1 to entry: For more information, see C.7.1.
Note 2 to entry: This is a point of danger which can lead to death.
3.4
maximum temperature
T
max
upper limit of comfort range, up to which a partially uncovered sleeping bag user just does not perspire
too much
Note 1 to entry: For more information, see C.7.4.
3.5
thermal manikin
dummy with human shape and heated body surface which allows the determination of thermal transfer
through the sleeping bag under steady-state conditions
Note 1 to entry: i.e. constant heat flux and temperature gradient between body surface and ambient air.
3.6
thermal resistance
thermal insulation
R
c
property of the sleeping bag which is related to the dry heat loss of the sleeping bag user, effected by the
difference of temperature between the skin and the ambient air, as measured with a thermal manikin
Note 1 to entry: The dry heat loss of the sleeping bag user is a combination of conductive, convective and radiative
heat transfer.
Note 2 to entry: This thermal resistance represents the insulative property of a sleeping bag, which includes
the effects of the shell fabrics and filling materials, air volume in the cavity inside the sleeping bag, boundary
air layer on the outer face of the sleeping bag, mattress underneath the sleeping bag and garments worn by the
sleeping bag user. It is considered to be the total thermal insulation (see ISO 15831).
2 © ISO 2016 – All rights reserved

---------------------- Page: 14 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

4 Requirements and test methods
4.1 Water vapour permeability index
When tested in accordance with ISO 11092, the material specific water-vapour permeability index (i )
mt
of the sleeping bag shall be ≥0,45. Where front and back area of the sleeping bag are of different material
combinations, both parts shall be tested.
NOTE The water-vapour permeability index is dimensionless, and has values between 0 and 1. A value of
0 implies that the material is water-vapour impermeable, that is, it has infinite water-vapour resistance, and a
material with a value of 1 has both the thermal resistance and water-vapour resistance of an air layer of the same
thickness.
4.2 Inside dimensions
4.2.1 Inside length
To enable labelling of the sleeping bag, the inside length of the sleeping bag shall be measured
within ±3 cm. The measurement is made by turning the sleeping bag inside out and measuring the length
from the position of the seam where the heel of the foot is placed to the top of the sleeping bag (excluding
any vertical components of the hood), without applying any force to extend the sleeping bag length.
4.2.2 Maximum inside width
To enable labelling of the sleeping bag, the maximum inside width shall be measured within ±2 cm. The
measurement is made by turning the sleeping bag inside out and measuring the circumference at the
widest point without stretching the fabric. If the maximum inside width of the sleeping bag is not in the
chest area, then the position of the widest point of the sleeping bag shall be indicated on the label. The
circumference is halved to provide the width of the sleeping bag. If the sleeping bag has elastic seams,
a force of (10 ± 1) N may be used to extend these seams prior to measurement, for instance by using a
spring balance.
4.2.3 Inside foot width
To enable labelling of the sleeping bag, the foot width shall be measured within ±2 cm. The measurement
is made by turning the sleeping bag inside out and measuring the circumference at a distance (30 ± 1) cm
towards the hood from the position where the heel of the foot is placed. The circumference is halved to
provide the width of the sleeping bag. If the sleeping bag has elastic seams, a force of (10 ± 1) N may be
used to extend these seams prior to measurement, for instance by using a spring balance.
4.3 Total mass
The total mass of sleeping bags filled with feather and/or down shall be determined in accordance with
EN 13088.
For sleeping bags filled with materials other than feather and down, samples shall be conditioned
according to ISO 139 at 20 °C air temperature and 65 % relative air humidity and the mass of the
sleeping bag (without stuff sack) shall be determined. The deviation of the total mass from the declared
nominal value shall be ≤7 %.
4.4 Thermal properties
4.4.1 Principle
The thermal resistance of the sleeping bag is measured with a thermal manikin which meets the
requirements and test procedure of ISO 15831 and which is inserted into the sleeping bag and placed in
a controlled atmosphere.
© ISO 2016 – All rights reserved 3

---------------------- Page: 15 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

A physiological model is then applied which uses this thermal resistance to determine ambient
temperatures corresponding to a range of utility of the sleeping bag.
4.4.2 Thermal manikin
A thermal manikin according to ISO 15831 with the body height of (1,70 ± 0,15) m shall be used.
During the test, the manikin shall be dressed with the following garments:
— two-piece suit (upper part with long sleeves, trousers) with a material specific thermal resistance
tested (R ) in accordance with ISO 11092 of
ct
2 2
R = (0,040 m ∙K/W to 0,060 m ∙K/W) (1)
ct
— knee-length socks with a material specific thermal resistance tested in accordance with ISO 11092 of
2 2
R = (0,040 m ∙K/W to 0,060 m ∙K/W) (2)
ct
The thermal manikin’s skin temperature shall be in accordance with ISO 15831:2004, Clause 7.
4.4.3 Climatic room
The test shall be performed in a climatic room with an air speed, a heat flux and a relative humidity in
accordance with ISO 15831:2004, Clause 7.
The ambient temperature shall be (10 ± 5) °C. During the test, the fluctuation of the ambient temperature
shall be in accordance with ISO 15831:2004, 5.2.1.
2
NOTE Very insulative sleeping bags might not allow the heat flux to be ≥20 W/m . In these cases, an ambient
temperature of the lowest value within this range is seen as appropriate.
4.4.4 Thermal resistance
4.4.4.1 Thermal resistance posture 1 R (1)
c
The thermal resistance posture 1 R (1) is measured with the thermal manikin completely inserted into
c
the sleeping bag and lying on its back. The bag’s zippers, if any, are closed. The bag’s hood, if present,
covers the manikin’s head, and the cords of the hood are tightened as much as possible without using
any additional aids (e.g. clothes pins, etc.) not supplied with the sleeping bag.
For sleeping bags that have hood draw cords with which the hood aperture can be closed to <120 mm
1)
diameter or <375 mm perimeter, a cold-protective mask shall be used on the manikin’s face. For
sleeping bags with hood draw cords with which the hood aperture cannot be closed to <120 mm
diameter or <375 mm perimeter, a cold-protective mask shall not be used on the manikin’s face. For
sleeping bags that do not have a hood or do not have hood draw cords, a cold-protective mask shall not
be used.
The thermal resistance posture 1 R (1) is determined using either the serial or the parallel calculation
c
method according to ISO 15831. A combination of these two calculation methods is also possible. With
a given thermal manikin, the decision as to which calculation model is appropriate shall be based on
the results of the calibration procedure including the correlation for the individual thermal manikin, as
described in 4.4.9.
1) Mask, Extreme Cold Weather, U.S. G.I., is the trade name of a product supplied by Colemans. This Information is
given for the convenience of users of this documents and does not constitute an endorsement by ISO of the products
named. Equivalent products may be used if they can be shown to lead to the same results.
4 © ISO 2016 – All rights reserved

---------------------- Page: 16 ----------------------

SIST EN ISO 23537-1:2017
ISO 23537-1:2016(E)

4.4.4.2 Thermal resistance posture 2 R (2)
c
The thermal resistance posture 2 R (2) is measured with the thermal manikin only partly inserted
c
into the sleeping bag, and lying on its back. The upper part of the sleeping bag is pulled up only to the
thermal manikin’s arm pits; and the arms of the thermal manikin lie outside the bag’s upper part. The
zippers of the sleeping bag, if any, are completely opened. The bag’s hood, if present, is placed below
the thermal manikin’s head without tightening the cords. No cold-protective mask is on the thermal
manikin’s face.
The thermal resistance posture 2 R (2) is determined using the parallel calculation method according
c
to ISO 15831.
4.4.5 Artificial ground
The test shall be operated with the thermal manikin placed into the sleeping bag in accordance
with 4.4.4.1 or 4.4.4.2, lying on a foam mattress with a material specific thermal resistance
2
R = (0,85 ± 0,06) m ∙K/W when tested in accordance with ISO 11092 and placed on an artificial
ct
ground. This ground shall consist of a wooden board according to ISO 1096, large enough that no part of
the manikin or the sleeping bag protrudes over the board, with a thickness of (20 ± 2) mm.
The artificial ground is held at least 100 mm above the floor by some kind of support which allows air
circulation underneath the artificial ground.
4.4.6 Test samples and pre-treatment
Before testing, the sleeping bag shall be dry tumbled in a dryer with a capacity of ≥250 l without any
additional load for 15 min at a temperature of <30 °C. After this dry tumbling and immediately prior to
the test, it shall be conditioned for ≥12 h in the ambient conditions of the test.
4.4.7 Test procedure
The test shall be performed according to the requirements in 4.4.2, 4.4.3, and 4.4.5.
For each specific thermal manikin, the position of the arms and legs in relation to the torso of the
manikin, the wooden board and the artificial ground shall be defined as part of the calibration
procedure and remain the same in all the tests performed according to this part of ISO 23537.
Calculate the value of the thermal resistance posture 1 R (1) and/or the thermal resistance posture 2
c
R (2) by applying the correlation gained from the calibration procedure as given in 4.4.9.
c
Three separate tests shall be completed; each commencing from the insertion of the manikin into the
sleeping bag. The arithmetic mean value of the thermal resistance of the sleeping bag shall then be
calculated.
If the tests cannot be completed using three separate sleeping bags, then use of a single bag is
permissible however it shall undergo the pre-treatment in accordance with 4.4.6 in between individual
tests, and the test report shall show a single bag was used.
4.4.8 Calculation of temperatur
...