SIST EN ISO 5999:2014

SLOVENSKI STANDARD
SIST EN ISO 5999:2014
01-februar-2014
1DGRPHãþD
SIST EN ISO 5999:2008
Polimerni materiali - Mehke pene - Poliuretanska pena za nosilne aplikacije, razen
za podlogo preprog - Specifikacija (ISO 5999:2013)
Flexible cellular polymeric materials - Polyurethane foam for load-bearing applications
excluding carpet underlay - Specification (ISO 5999:2013)
Weich-elastische Polymerschaumstoffe - Polyurethanschaumstoffe für Polsterzwecke mit
Ausnahme von Teppichunterlagen - Anforderungen (ISO 5999:2013)
Matériaux polymères alvéolaires souples - Mousse de polyuréthanne pour utilisations
soumises à des charges, à l'exclusion des revers de tapis - Spécifications (ISO
5999:2013)
Ta slovenski standard je istoveten z: EN ISO 5999:2013
ICS:
83.100 Penjeni polimeri Cellular materials
SIST EN ISO 5999:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 5999:2014

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SIST EN ISO 5999:2014


EUROPEAN STANDARD
EN ISO 5999

NORME EUROPÉENNE

EUROPÄISCHE NORM
September 2013
ICS 83.100 Supersedes EN ISO 5999:2007
English Version
Flexible cellular polymeric materials - Polyurethane foam for
load-bearing applications excluding carpet underlay -
Specification (ISO 5999:2013)
Matériaux polymères alvéolaires souples - Mousse de Weich-elastische Polymerschaumstoffe -
polyuréthanne pour utilisations soumises à des charges, à Polyurethanschaumstoffe für Polsterzwecke mit Ausnahme
l'exclusion des revers de tapis - Spécifications (ISO von Teppichunterlagen - Anforderungen (ISO 5999:2013)
5999:2013)
This European Standard was approved by CEN on 26 July 2013.

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
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5999:2013: E
worldwide for CEN national Members.

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SIST EN ISO 5999:2014
EN ISO 5999:2013 (E)
Contents Page
Foreword .3
2

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SIST EN ISO 5999:2014
EN ISO 5999:2013 (E)
Foreword
This document (EN ISO 5999:2013) has been prepared by Technical Committee ISO/TC 45 “Rubber and
rubber products” in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is
held by NBN.
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 March 2014, and conflicting national standards shall be withdrawn at
the latest by March 2014.
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 ISO 5999:2007.
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 5999:2013 has been approved by CEN as EN ISO 5999:2013 without any modification.
3

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SIST EN ISO 5999:2014

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SIST EN ISO 5999:2014
INTERNATIONAL ISO
STANDARD 5999
Third edition
2013-09-01
Flexible cellular polymeric
materials — Polyurethane foam for
load-bearing applications excluding
carpet underlay — Specification
Matériaux polymères alvéolaires souples — Mousse de polyuréthanne
pour utilisations soumises à des charges, à l’exclusion des revers de
tapis — Spécifications
Reference number
ISO 5999:2013(E)
©
ISO 2013

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
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
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
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Classification . 2
3.1 Type . 2
3.2 Class . 2
3.3 Grade . 5
4 Requirements . 5
4.1 Material . 5
4.2 Construction . 6
4.3 Surface condition . 6
4.4 Odour . 6
4.5 Colour . 6
4.6 Component mass and density . 6
4.7 Dimensions . 6
4.8 Physical properties . 7
4.9 Burning properties .10
5 Test methods .10
5.1 Test conditions .10
5.2 Mass .11
5.3 Dimensions .11
5.4 Density .11
5.5 Hardness .11
5.6 Resilience .11
5.7 Compression set . .11
5.8 Dynamic fatigue by constant-load pounding .11
5.9 Tensile strength and elongation at break .11
5.10 Burning behaviour .11
5.11 Heat ageing .11
5.12 Humidity ageing .11
6 Inspection .12
6.1 General .12
6.2 Type inspection .12
6.3 Shipping inspection .12
7 Marking .12
Annex A (informative) Typical applications for each class of material .14
Annex B (informative) Burning properties of flexible polyurethane foam and recommendations
regarding its use .15
Bibliography .17
© ISO 2013 – All rights reserved iii

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SIST EN ISO 5999:2014
ISO 5999:2013(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.
The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee
SC 4, Products (other than hoses).
This third edition cancels and replaces the second edition (ISO 5999:2007), which has been
technically revised.
iv © ISO 2013 – All rights reserved

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SIST EN ISO 5999:2014
INTERNATIONAL STANDARD ISO 5999:2013(E)
Flexible cellular polymeric materials — Polyurethane foam
for load-bearing applications excluding carpet underlay —
Specification
1 Scope
This International Standard specifies requirements for flexible load-bearing polyurethane foam of the
polyether type.
It is applicable to flexible polyurethane cellular materials manufactured in block, sheet and strip form,
in moulded and fabricated shapes, and as reconstituted material, used for load-bearing applications
in general, but excluding carpet backing and underlay. It, thus, primarily relates to the quality of
polyurethane foam used for comfort cushioning purposes.
The foam is classified according to the type of foam, the performance during a fatigue test, and the
indentation hardness index used as a means of grading materials.
This International Standard is not applicable to polyurethane foams foamed in place or to foams for use
in heat-welded systems unless for load-bearing purposes.
Recommended applications for the range of flexible polyurethane foams covered by this International
Standard are listed in Annex A.
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 845, Cellular plastics and rubbers — Determination of apparent density
ISO 1798, Flexible cellular polymeric materials — Determination of tensile strength and elongation at break
ISO 1856, Flexible cellular polymeric materials — Determination of compression set
ISO 1923, Cellular plastics and rubbers — Determination of linear dimensions
ISO 2439:2008, Flexible cellular polymeric materials — Determination of hardness (indentation technique)
ISO 2440, Flexible and rigid cellular polymeric materials — Accelerated ageing tests
ISO 3385, Flexible cellular polymeric materials — Determination of fatigue by constant-load pounding
ISO 3582, Flexible cellular polymeric materials — Laboratory assessment of horizontal burning
characteristics of small specimens subjected to a small flame
ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry — Determination of
burning behaviour of interior materials
ISO 8307, Flexible cellular polymeric materials — Determination of resilience by ball rebound
ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods
© ISO 2013 – All rights reserved 1

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

3 Classification
3.1 Type
For the purposes of this International Standard, flexible polyurethane foams are classified in accordance
with Table 1.
Table 1 — Types of foam
Type Description of foam
LB Block foam, slabstock or contour cut [low resilience (known as “viscoelastic”)]
I MB Block foam, slabstock or contour cut (conventional)
HB Block foam, slabstock or contour cut (high resilience)
LM Moulded [low resilience (known as “viscoelastic”)]
II MM Moulded (conventional)
HM Moulded (high resilience)
III RE Reconstituted or bonded
3.2 Class
3.2.1 Materials of the types of foam listed in Table 1, except for type MM (see footnote b to Table 7) and
RE (see footnote a to Table 8), are subdivided into five classes based on the performance in the constant-
load pounding test described in ISO 3385.
3.2.2 The five classes, their intended types of service and their intended hardness loss ratio are given
in Table 2.
Table 2 — Classes and intended types of service
Hardness loss ratio
Class Type of service
P (%)
X Exceptionally severe 0 ≤ P < 12
V Very severe 12 ≤ P < 22
S Severe 22 ≤ P < 32
A Average 32 ≤ P < 39
L Light 39 ≤ P < 45
NOTE  The hardness loss ratio is calculated from the following formula:
HF−
    P = ×100
H
where
   P  is the hardness loss ratio (%);
   H  is the initial hardness index (N);
   F  is the final hardness index (N).
3.2.3 Classes X, V, S, A and L are defined by the indentation hardness loss over the range of hardness
index values from 0 N to 650 N, as shown in Figures 1 and 2, provided the requirements for physical
properties specified in Table 6, Table 7 and Table 8 are met.
2 © ISO 2013 – All rights reserved

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

Key
X initial indentation hardness index (N)
Y indentation hardness loss, (H – F) (see the Note to Table 2) (N)
1 below lowest line, material does not comply with this International Standard
a
Hardness index grades.
b
Classes of material.
Figure 1 — Fatigue classes and indentation hardness index grades — Low hardness values
© ISO 2013 – All rights reserved 3

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

Key
X initial indentation hardness index (N)
Y indentation hardness loss, (H – F) (see the Note to Table 2) (N)
1 below lowest line, material does not comply with this International Standard
a
Hardness index grades.
b
Classes of material.
NOTE 1 Class A and class L materials might not be available at all high hardness levels.
NOTE 2 Reconstituted foam (type RE), because of its good fatigue properties combined with poorer compression
set, tensile strength and elongation at break properties, is specified separately in Table 8. It is generally used as
thin, firm padding or to provide reinforcement for the other foams.
Figure 2 — Fatigue classes and indentation hardness index grades — High hardness values
4 © ISO 2013 – All rights reserved

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SIST EN ISO 5999:2014
ISO 5999:2013(E)

3.2.4 As an example, in Figure 1, a material of initial hardness indentation index 140 N,
— with an indenta
...