ISO 21844:2018

INTERNATIONAL ISO
STANDARD 21844
First edition
2018-04
Cellular plastic — Cellulose foam
thermal insulation — Material
specification
Plastiques alvéolaires — Matériau d'isolation à base de mousse de
cellulose — Spécifications
Reference number
ISO 21844:2018(E)
©
ISO 2018

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ISO 21844:2018(E)

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Published in Switzerland
ii © ISO 2018 – All rights reserved

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ISO 21844:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
4.1 Dyes and fluorescent whitening agent . 2
4.2 Foreign matters . 2
4.3 Manufacturing process. 2
4.4 Toxic substance . 2
4.5 Appearance . 2
4.6 Performance . 2
4.7 Dimension . 3
5 Test methods . 3
5.1 Sampling . 3
5.2 Specimen preparation . 3
5.3 Appearance . 3
5.4 Conditioning of specimens . 3
5.5 Laboratory conditions when testing is conducted .
...