ISO 3616:2022 テキスタイル ガラス - チョップド ストランドおよび連続フィラメント マット - 平均厚さ、荷重下の厚さ、および圧縮後の回復の測定 | 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, 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, 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 ).

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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres.

This third edition cancels and replaces the second edition (ISO 3616:2001), which has been technically revised. It also incorporates the Amendment ISO 3616:2001/Amd. 1:2017.

The main changes are as follows:

• an “Introduction” has been added;
• the sampling method (former Clause 6) has been deleted and subsequent clauses have been renumbered;
• the duration for conditioning test specimens has been changed to from at least 16 h to at least 2 h.

Introduction

Chopped-strand and continuous-filament mats are mainly used as reinforcement materials for polymer matrix composites. The average thickness, thickness under load and recovery after compression of the mat are the most basic parameters provided for the composites process design and the final product structure and size design.

1 Scope

This document specifies a method for the determination of the average thickness, the thickness under load and the recovery after compression of chopped-strand and continuous-filament textile-glass mats.

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.

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: