ISO/TR 23107:2021 ISO14520シリーズに含めるための新しい消火剤の評価基準 | 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 ).

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

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html .

This document was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Sub-committee SC 8, Gaseous media and firefighting systems using gas.

This second edition cancels and replaces the first edition (ISO/TR 23107:2019), which has been technically revised.

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

• the title has been modified;
• additional information has been added to the Introduction;
• the Scope has been reworded;
• checklist items 7.5, 7.5.1 and 7.5.2 have been renumbered 8, 8.1 and 8.2 respectively.

Introduction

The ISO 14520 series sets forth important information necessary for introducing total flooding fire extinguishing agents into the marketplace. Important information includes that related to physical, thermodynamic and chemical properties, safe exposure criteria, performance criteria such as minimum extinguishing and design concentrations, and environment characteristics.

This document includes technical information related to the design and use of total flooding fire extinguishing systems using liquefied or non-liquefied gaseous fire extinguishing agents. Suggested minimum extinguishant information includes:

• identification;
• specifications;
• physical properties;
• minimum extinguishing concentrations and minimum design concentrations;
• use parameters;
• toxicity;
• environmental properties;
• system design.

If the extinguishant manufacturer so wishes, the required information can be supplemented with additional information that can prove useful in matters related to the manufacturer, storage, use and handling of extinguishant containers.

1 Scope

This document suggests specific types of information that can be useful for assessing safe and effective gaseous extinguishing media for inclusion in the ISO 14520 series.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

No terms and definitions are listed in this document.

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

Bibliography