ISO 22975-5:2019
(Main)Solar energy — Collector components and materials — Part 5: Insulation material durability and performance
Solar energy — Collector components and materials — Part 5: Insulation material durability and performance
This document specifies the requirements on insulation materials for solar collectors and test methods for durability and performance of insulation materials used in solar collectors. This document is applicable to all types of insulation material used in solar collectors, such as rigid polyurethane foam (PU), phenolic foam (PF), mineral wool (MW) and mineral fibre.
Énergie solaire — Composants et matériaux du collecteur — Partie 5: Durabilité et performance des matériaux isolants
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INTERNATIONAL ISO
STANDARD 22975-5
First edition
2019-05
Solar energy — Collector components
and materials —
Part 5:
Insulation material durability and
performance
Énergie solaire — Composants et matériaux du collecteur —
Partie 5: Durabilité et performance des matériaux isolants
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 General . 3
4.2 For specific application . 3
5 Test methods . 3
5.1 Rigid polyurethane foam and phenolic foam . 3
5.1.1 Standard atmospheres for conditioning and testing . 3
5.1.2 Apparent density . 3
5.1.3 Apparent volume percentage of open cells . 3
5.1.4 Dimensional stability . 3
5.1.5 Compression properties . 3
5.1.6 Water absorption . . 3
5.1.7 Hygroscopic sorption properties . 3
5.1.8 Water vapor transmission properties . 3
5.1.9 Thermal resistance and thermal conductivity . 3
5.1.10 Flammability . 4
5.1.11 Accelerated aged value of thermal resistance . 4
5.2 Mineral wool and mineral fibre . 4
5.2.1 Dimension . 4
5.2.2 Bulk density . 8
5.2.3 Compression behaviour . 9
5.2.4 Water absorption . .10
5.2.5 Moisture content .17
5.2.6 Water vapor transmission properties .17
5.2.7 Thermal resistance and thermal conductivity .24
5.2.8 The maximum use temperature .24
5.2.9 Non-combustibility .28
5.3 Outgassing of insulation materials in solar flat-plate collectors .28
5.3.1 General.28
5.3.2 Apparatus .28
5.3.3 Sampling.29
5.3.4 Procedure .30
5.3.5 Analysis and criteria .30
Annex A (normative) Test report for insulation material .33
Annex B (informative) Requirements for specific application .40
Bibliography .42
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 voluntary nature of standards, 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.
This document was prepared by Technical Committee ISO/TC 180, Solar Energy.
A list of all parts in the ISO 22975 series can be found on the ISO website.
iv © ISO 2019 – All rights reserved
Introduction
The insulation material is a component of a solar collector, which is placed behind the panel in a flat
plate solar collector or in the header of an evacuated tube solar collector through a specific filling
process and is used as a heat insulation element.
This document provides test methods for measuring the common properties on insulation materials,
including apparent density, apparent volume percentage of open cells of PU and PF, and dimension,
bulk density of MW and mineral fibre. For each test, this document specifies sampling, apparatus and
acceptance test procedure.
This document also provides test methods for determining the durability of insulation materials,
including compression properties, water absorption, hygroscopic sorption properties, water vapor
transmission properties, flammability, accelerated aged value of thermal resistance of PU and PF, and
compression behaviour, water absorption, moisture content, water vapor transmission properties,
maximum use temperature, non-combustibility of MW and mineral fibre. For each durability test,
this document specifies principle, apparatus, sampling, acceptance test procedure, calculation and
expression of results, or evaluation.
This document also provides test methods and acceptance test procedure for measuring performance
of insulation materials, including thermal resistance and thermal conductivity.
This document also provides test methods and acceptance test procedure for measuring outgassing of
insulation materials in solar flat-plate collector.
INTERNATIONAL STANDARD ISO 22975-5:2019(E)
Solar energy — Collector components and materials —
Part 5:
Insulation material durability and performance
1 Scope
This document specifies the requirements on insulation materials for solar collectors and test methods
for durability and performance of insulation materials used in solar collectors.
This document is applicable to all types of insulation material used in solar collectors, such as rigid
polyurethane foam (PU), phenolic foam (PF), mineral wool (MW) and mineral fibre.
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 291, Plastics — Standard atmospheres for conditioning and testing
ISO 844, Rigid cellular plastics — Determination of compression properties
ISO 845, Cellular plastics and rubbers — Determination of apparent density
ISO 1182:2010, Reaction to fire tests for products — Non-combustibility test
ISO 1663, Rigid cellular plastics — Determination of water vapour transmission properties
ISO 2796, Cellular plastics, rigid — Test for dimensional stability
ISO 2896, Rigid cellular plastics — Determination of water absorption
ISO 4590, Rigid cellular plastics — Determination of the volume percentage of open cells and of closed cells
ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Heat flow meter apparatus
ISO 9050, Glass in building — Determination of light transmittance, solar direct transmittance, total solar
energy transmittance, ultraviolet transmittance and related glazing factors
ISO 11561:1999, Ageing of thermal insulation materials — Determination of the long-term change in
thermal resistance of closed-cell plastics (accelerated laboratory test methods)
ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of
flame — Part 2: Single-flame source test
ISO 12570, Hygrothermal performance of building materials and products — Determination of moisture
content by drying at elevated temperature
ISO 12571, Hygrothermal performance of building materials and products — Determination of hygroscopic
sorption properties
ISO 29469, Thermal insulating products for building applications — Determination of compression
behaviour
---------------
...
INTERNATIONAL ISO
STANDARD 22975-5
First edition
2019-05
Solar energy — Collector components
and materials —
Part 5:
Insulation material durability and
performance
Énergie solaire — Composants et matériaux du collecteur —
Partie 5: Durabilité et performance des matériaux isolants
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 General . 3
4.2 For specific application . 3
5 Test methods . 3
5.1 Rigid polyurethane foam and phenolic foam . 3
5.1.1 Standard atmospheres for conditioning and testing . 3
5.1.2 Apparent density . 3
5.1.3 Apparent volume percentage of open cells . 3
5.1.4 Dimensional stability . 3
5.1.5 Compression properties . 3
5.1.6 Water absorption . . 3
5.1.7 Hygroscopic sorption properties . 3
5.1.8 Water vapor transmission properties . 3
5.1.9 Thermal resistance and thermal conductivity . 3
5.1.10 Flammability . 4
5.1.11 Accelerated aged value of thermal resistance . 4
5.2 Mineral wool and mineral fibre . 4
5.2.1 Dimension . 4
5.2.2 Bulk density . 8
5.2.3 Compression behaviour . 9
5.2.4 Water absorption . .10
5.2.5 Moisture content .17
5.2.6 Water vapor transmission properties .17
5.2.7 Thermal resistance and thermal conductivity .24
5.2.8 The maximum use temperature .24
5.2.9 Non-combustibility .28
5.3 Outgassing of insulation materials in solar flat-plate collectors .28
5.3.1 General.28
5.3.2 Apparatus .28
5.3.3 Sampling.29
5.3.4 Procedure .30
5.3.5 Analysis and criteria .30
Annex A (normative) Test report for insulation material .33
Annex B (informative) Requirements for specific application .40
Bibliography .42
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 voluntary nature of standards, 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.
This document was prepared by Technical Committee ISO/TC 180, Solar Energy.
A list of all parts in the ISO 22975 series can be found on the ISO website.
iv © ISO 2019 – All rights reserved
Introduction
The insulation material is a component of a solar collector, which is placed behind the panel in a flat
plate solar collector or in the header of an evacuated tube solar collector through a specific filling
process and is used as a heat insulation element.
This document provides test methods for measuring the common properties on insulation materials,
including apparent density, apparent volume percentage of open cells of PU and PF, and dimension,
bulk density of MW and mineral fibre. For each test, this document specifies sampling, apparatus and
acceptance test procedure.
This document also provides test methods for determining the durability of insulation materials,
including compression properties, water absorption, hygroscopic sorption properties, water vapor
transmission properties, flammability, accelerated aged value of thermal resistance of PU and PF, and
compression behaviour, water absorption, moisture content, water vapor transmission properties,
maximum use temperature, non-combustibility of MW and mineral fibre. For each durability test,
this document specifies principle, apparatus, sampling, acceptance test procedure, calculation and
expression of results, or evaluation.
This document also provides test methods and acceptance test procedure for measuring performance
of insulation materials, including thermal resistance and thermal conductivity.
This document also provides test methods and acceptance test procedure for measuring outgassing of
insulation materials in solar flat-plate collector.
INTERNATIONAL STANDARD ISO 22975-5:2019(E)
Solar energy — Collector components and materials —
Part 5:
Insulation material durability and performance
1 Scope
This document specifies the requirements on insulation materials for solar collectors and test methods
for durability and performance of insulation materials used in solar collectors.
This document is applicable to all types of insulation material used in solar collectors, such as rigid
polyurethane foam (PU), phenolic foam (PF), mineral wool (MW) and mineral fibre.
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 291, Plastics — Standard atmospheres for conditioning and testing
ISO 844, Rigid cellular plastics — Determination of compression properties
ISO 845, Cellular plastics and rubbers — Determination of apparent density
ISO 1182:2010, Reaction to fire tests for products — Non-combustibility test
ISO 1663, Rigid cellular plastics — Determination of water vapour transmission properties
ISO 2796, Cellular plastics, rigid — Test for dimensional stability
ISO 2896, Rigid cellular plastics — Determination of water absorption
ISO 4590, Rigid cellular plastics — Determination of the volume percentage of open cells and of closed cells
ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Heat flow meter apparatus
ISO 9050, Glass in building — Determination of light transmittance, solar direct transmittance, total solar
energy transmittance, ultraviolet transmittance and related glazing factors
ISO 11561:1999, Ageing of thermal insulation materials — Determination of the long-term change in
thermal resistance of closed-cell plastics (accelerated laboratory test methods)
ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of
flame — Part 2: Single-flame source test
ISO 12570, Hygrothermal performance of building materials and products — Determination of moisture
content by drying at elevated temperature
ISO 12571, Hygrothermal performance of building materials and products — Determination of hygroscopic
sorption properties
ISO 29469, Thermal insulating products for building applications — Determination of compression
behaviour
---------------
...
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