ISO 20310:2018

Thermal insulation for building equipment and industrial installations - Aluminosilicate wool products - Specification

This document specifies the classification, requirements and test methods for factory-made aluminosilicate wool products which are used for thermal insulation of industrial installations and building equipment, for non-refractory applications. The products are delivered as blanket, module, felt, board, paper, textile and other forms. This document describes product characteristics and testing methods, marking and labelling. 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.

Isolation thermique pour les équipements du bâtiment et les installations industrielles — Produits en laine d'aluminosilicate — Spécifications

General Information

• Status: Published
• Publication Date: 15-May-2018
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: ISO/TC 163/SC 3 - Thermal insulation products, components and systems
• Drafting Committee: ISO/TC 163/SC 3 - Thermal insulation products, components and systems
• Current Stage: 9093 - International Standard confirmed
• Start Date: 09-Sep-2023
• Completion Date: 13-Dec-2025

Overview

ISO 20310:2018 specifies requirements, classification and test methods for factory-made aluminosilicate wool (ASW) products used as thermal insulation for building equipment and industrial installations in non-refractory applications. It covers product forms such as blanket, module, felt, board, paper, textile and other forms, and defines product characteristics, sampling and conditioning, testing procedures, marking and labelling. The standard does not prescribe target performance levels for specific applications - it defines how properties are measured and reported so users can assess fitness for purpose.

Key topics and technical requirements

• Classification by temperature: Products are classified into types (Type I–VI) according to a classification temperature (see Table 1). Recommended long‑term service temperatures are typically about 150–200 °C lower than the classification temperature.
• Permanent linear change: Measured at the classification temperature; maximum allowed permanent linear change is 4.0%.
• Thermal conductivity (λ): Manufacturers must declare λ and provide conductivity vs temperature (typically from 200 °C up to 1 100 °C, where applicable). Measurement methods: ISO 8302 (up to 800 °C) and ISO 8894-1 / ISO 10635 (above 800 °C). Thermal conductivity testing is performed at actual measured thickness.
• Dimensions and tolerances: Length, width and thickness tolerances are defined (see Table 2); length and width follow ISO 29465, thickness by ISO 10635.
• Apparent density: Tolerance from nominal density ±10% (measured by ISO 10635).
• Shot content: Shot particles >0.212 mm shall not exceed 20% of total mass.
• Tensile strength: Minimum tensile strength requirements for blankets, felts and paper are specified in tables (by nominal density or thickness).
• Sampling & conditioning: Minimum sample area, specimen sizes and conditioning (drying at 110 °C to constant mass) are specified.
• Conformity & FPC: Initial type testing (ITT), factory production control (FPC) and marking/designation code requirements are included.

Applications and who uses it

ISO 20310:2018 is used by:

• Manufacturers of aluminosilicate wool products for product specification, testing and labelling
• Product testing laboratories performing thermal, dimensional and mechanical tests
• Specifying engineers and consultants who need consistent, comparable property data for thermal insulation selection
• Procurement and quality assurance teams requiring conformity evidence and factory production control
• Insulation contractors and plant designers selecting insulation for industrial installations and building equipment (non-refractory)

Keywords: ISO 20310:2018, aluminosilicate wool, ASW, thermal insulation, thermal conductivity, industrial insulation, classification temperature, product testing.

Related standards

• ISO 8302 (guarded hot plate / thermal resistance)
• ISO 8894-1 (refractory thermal conductivity hot-wire)
• ISO 10635 (ceramic fibre product tests)
• ISO 13787 (declared thermal conductivity)
• ISO 29465 (length and width determination)
• ISO 9229, ISO 836 (vocabulary and terminology)

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20310
First edition
2018-05
Thermal insulation for building
equipment and industrial
installations — Aluminosilicate wool
products — Specification
Isolation thermique pour les équipements du bâtiment et les
installations industrielles — Produits en laine d'aluminosilicate —
Spécifications
Reference number
©
ISO 2018
© ISO 2018
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
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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 2
5 Requirements . 2
5.1 General . 2
5.2 Classification . 3
5.3 Permanent linear change . 3
5.4 Thermal conductivity . 3
5.5 Dimensions . 3
5.6 Apparent density . 4
5.7 Shot content . 4
5.8 Tensile strength . 4
6 Test methods . 5
6.1 Sampling . 5
6.2 Conditioning . 5
6.3 Testing . 5
6.3.1 Test methods and specimen requirements . 5
6.3.2 Thermal conductivity . . 6
7 Designation code . 6
8 Product conformity . 6
8.1 General . 6
8.2 Initial type testing . 7
8.3 Factory production control . 7
9 Marking and labelling . 7
Annex A (normative) Factory production control . 8
Annex B (informative) Evaluation of conformity . 9
Annex C (informative) Service temperature of aluminosilicate wool, ceramic wool and
mineral wools .10
Bibliography .11
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
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
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Any trade name used in this document is information given for the convenience of users and does not
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URL: 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.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 20310:2018(E)
Thermal insulation for building equipment and industrial
installations — Aluminosilicate wool products —
Specification
1 Scope
This document specifies the classification, requirements and test methods for factory-made
aluminosilicate wool products which are used for thermal insulation of industrial installations and
building equipment, for non-refractory applications. The products are delivered as blanket, module,
felt, board, paper, textile and other forms.
This document describes product characteristics and testing methods, marking and labelling.
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.
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 836, Terminology for refractories
ISO 8302, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Guarded hot plate apparatus
ISO 8894-1, Refractory materials — Determination of thermal conductivity — Part 1: Hot-wire methods
(cross-array and resistance thermometer)
ISO 9229, Thermal insulation — Vocabulary
ISO 10635, Refractory products — Methods of test for ceramic fibre products
ISO 13787, Thermal insulation products for building equipment and industrial installations —
Determination of declared thermal conductivity
ISO 29465, Thermal insulating products for building applications — Determination of length and width
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9229, ISO 836 and the
following 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 https: //ww
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