ISO 23999:2018 弾力性のある床材—熱にさらされた後の寸法安定性とカールの決定 | ページ 2

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 ).

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Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

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This document was prepared by Technical Committee ISO/TC 219, Floor coverings.

This second edition cancels and replaces the first edition (ISO 23999:2008), which has been technically revised.

The main changes compared to the previous edition are as follows:

• cross-references within the document have been updated;
• minor editorial changes have been made;
• the scope has been broadened to allow testing of planks;
• the possibility of additional testing temperatures has been introduced;
• the specimen dimensions have been specified;
• an appendix has been added to allow for dimensional changes immediately after exposure to specified heated exposure conditions.

1 Scope

This document specifies a method for determining dimensional stability and curling of resilient floor coverings, in the form of sheets, tile or planks after exposure to heat.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography