ISO 24285:2022
(Main)Thermal insulation for building equipment and industrial installations — Cellular glass products — Specification
Thermal insulation for building equipment and industrial installations — Cellular glass products — Specification
This document specifies the requirements and test methods for factory-made cellular glass products, which are used for thermal insulation of building equipment and industrial installations, with an operating temperature range of approximately −265 °C to +430 °C. The products are manufactured in the form of slabs, faced or unfaced boards, pipe sections, segments and prefabricated ware. This document describes product characteristics and test methods, designation code, marking and labelling. This document does not apply to: — products with a declared thermal conductivity greater than 0,065 W/(m·K) at 10 °C; — products for the insulation of the building structure. This document does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. Specific requirements agreed between the purchaser and the supplier (e.g. type, dimensions and forms, regulatory compliance and inspection requirements or certification requirements), are outside the scope of this document.
Isolation thermique pour les équipements de bâtiments et les installations industrielles — Produits en verre cellulaire — Spécifications
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 24285
First edition
2022-12
Thermal insulation for building
equipment and industrial
installations — Cellular glass products
— Specification
Isolation thermique pour les équipements de bâtiments et les
installations industrielles — Produits en verre cellulaire —
Spécifications
Reference number
ISO 24285:2022(E)
© ISO 2022
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ISO 24285:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
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ISO 24285:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms.2
5 Characteristics . 3
5.1 General . 3
5.2 Thermal conductivity . 3
5.3 Compression strength . 4
5.4 Dimensions . 5
5.5 Bending strength . 6
5.6 Point load . 6
5.7 Compressive creep . 7
5.8 Long-term water absorption . 7
5.9 Water vapour diffusion resistance . 7
5.10 Fire behaviour . 7
5.11 Maximum service temperature . 7
5.12 Minimum service temperature . 7
5.13 Trace quantities of water-soluble ions and the pH-value . 7
6 Test methods . 8
6.1 Sampling . 8
6.2 Conditioning. 8
6.3 Testing . 8
6.3.1 Test methods and specimen requirements . 8
6.3.2 Thermal conductivity . 9
7 Designation code . . 9
8 Marking and labelling .10
Annex A (normative) Factory production control (FPC) .11
Annex B (informative) Product classification for flat products in respect of compressive
strength and thermal conductivity.12
Bibliography .13
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ISO 24285:2022(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 of 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
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use
in the built environment, Subcommittee SC 3, Thermal insulation products, components and systems.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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INTERNATIONAL STANDARD ISO 24285:2022(E)
Thermal insulation for building equipment and industrial
installations — Cellular glass products — Specification
1 Scope
This document specifies the requirements and test methods for factory-made cellular glass products,
which are used for thermal insulation of building equipment and industrial installations, with an
operating temperature range of approximately −265 °C to +430 °C. The products are manufactured in
the form of slabs, faced or unfaced boards, pipe sections, segments and prefabricated ware.
This document describes product characteristics and test methods, designation code, marking and
labelling.
This document does not apply to:
— products with a declared thermal conductivity greater than 0,065 W/(m·K) at 10 °C;
— products for the insulation of the building structure.
This document does not specify the required level of a given property to be achieved by a product to
demonstrate fitness for purpose in a particular application. Specific requirements agreed between the
purchaser and the supplier (e.g. type, dimensions and forms, regulatory compliance and inspection
requirements or certification requirements), are outside the scope of this document.
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 1182, Reaction to fire tests for products — Non-combustibility test
ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value)
ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties
— Heat flow meter apparatus
ISO 8302, Thermal insulation — Determination of steady-state thermal resistance and related properties
— Guarded hot plate apparatus
ISO 8497, Thermal insulation — Determination of steady-state thermal transmission properties of thermal
insulation for circular pipes
ISO 9229, Thermal insulation — Vocabulary
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 12572, Hygrothermal performance of building materials and products — Determination of water
vapour transmission properties — Cup method
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ISO 24285:2022(E)
ISO 12624, Thermal insulating products for building equipment and industrial installations —
Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH
ISO 12628, Thermal insulating products for building equipment and industrial installations —
Determination of dimensions, squareness and linearity of preformed pipe insulation
ISO 13787, Thermal insulation products for building equipment and industrial installations —
Determination of declared thermal conductivity
ISO 16535, Thermal insulating products for building applications — Determination of long-term water
absorption by immersion
ISO 18096, Thermal insulating products for building equipment and industrial installations —
Determination of maximum service temperature for preformed pipe insulation
ISO 18097, Thermal insulating products for building equipment and industrial installations —
Determination of maximum service temperature
ISO 29465, Thermal insulating products for building applications — Determination of length and width
ISO 29466, Thermal insulating products for building applications — Determination of thickness
ISO 29467, Thermal insulating products for building applications — Determination of squareness
ISO 29468, Thermal insulating products for building applications — Determination of flatness
ISO 29469, Thermal insulating products for building applications — Determination of compression
behaviour
ISO 29472, Thermal insulating products for building applications — Determination of dimensional stability
under specified temperature and humidity conditions
ISO 29771, Thermal insulating materials for building applications — Determination of organic content
EN 12089, Thermal insulating products for building applications — Determination of bending behaviour
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9229 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Symbols and abbreviated terms
b width mm
d thickness mm
l length mm
d nominal thickness of the product mm
N
D pipe diameter mm
λ thermal conductivity W/(m ⋅ K)
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ISO 24285:2022(E)
λ declared thermal conductivity W/(m ⋅ K)
D
μ water vapour diffusion resistance factor ——
CG cellular glass ——
CS compression strength kPa
PL(P) pointload mm
FPC factory production control ——
5 Characteristics
5.1 General
Product properties shall be tested in accordance with Clause 6. To be in conformity with this document,
products shall meet the requirements of 5.2 to 5.13, where applicable.
A level is defined for a given value which is the upper or lower limit of a requirement. The level is given
by the declared value of the characteristics concerned.
Slabs, boards, tapered or flat, fabricated ware and special shapes and pipe shells, pipe segments,
sections and other special shapes are prefabricated from blocks by sawing, cutting, abrading, grinding,
gluing or other methods of trimming.
The test methods that shall be used for determination of each property are given in Table 7, which also
shows the required test specimen dimensions and the minimum number of test specimens required to
give one test result.
The test methods in ISO 8301, ISO 8302, ISO 18097, ISO 29465 or ISO 29466 for flat products apply
to unfaced cellular glass boards. They also apply to core material used to produce faced cellular glass
boards or to cut or abrade pipe insulation or prefabricated ware.
The test may be performed on the unfaced/uncoated product, if the facing/coating is known to have no
influence on the property.
Since cellular glass pipe sections and prefabricated ware are sawed or abraded from flat products,
only dimensions, squareness, pipe linearity, thermal conductivity and trace quantities of water-soluble
chlorides and the pH-value shall be tested on preformed pipe sections, when relevant. This does not
concern the factory production control, except for dimensions (see Annex A). As such, the me
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