ISO 12992:2017 プラスチック — フィルムとシートの垂直方向の火炎伝播の決定 | ページ 2

Foreword

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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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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 4, Burning behaviour.

This second edition cancels and replaces the first edition (ISO 12992:1995), which has been technically revised.

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

• Clause 2 has been updated;
• Clause 3 has been updated;
• the precision data have been moved to Annex A.

Introduction

Thin flexible plastic films and sheets are widely used in products for packaging, building, housing, industries and transport media, in various applications. The burning behaviour, in particular, the vertical flame spread of flexible plastic films and sheet, is a concern for fire safety of these applications. This document gives a method of determination of vertical flame spread of flexible plastic films and sheets by small flame source.

This document is also intended as a pre-selection test for materials used for parts in devices and appliances. The final acceptance of the material would be dependent upon its use in complete equipment that conforms with the standards applicable to such equipment.

It should be noted that the test results obtained alone by the test specified in this document cannot give whole aspects of fire hazard of plastics films and sheets.

1 Scope

This document specifies a test method for measurement of flame spread properties of vertically oriented specimens of plastics in the form of film and sheet, 3 mm or less thickness, subjected to a small igniting flame.

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 terms and definitions given in ISO 13943 and the following apply.

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

Bibliography