ISBN 978-0-626-31263-3 SOUTH AFRICAN NATIONAL STANDARD Disposable portable condensed aerosol fire extinguishers WARNING This document references other documents normatively. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS
Table of changes Change No. Date Scope Amdt 1 2015 Amended to update the subclause on extinguishing class F test fires. Foreword This South African standard was approved by National Committee SABS/TC 021/SC 04, Fire safety Fire-fighting equipment, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was approved for publication in May 2015. This document supersedes SANS 1107:2014 (edition 1). A vertical line in the margin shows where the text has been technically modified by amendment No. 1. Annex B forms an integral part of this document. Annexes A, C and D are for information only. Introduction To introduce the reader to this standard, information on condensed aerosol technology is given below. Condensed aerosol extinguishing agents consist of finely divided solid particles that are typically based on alkali metal salts and gases that typically comprise nitrogen, carbon dioxide and water vapour. These aerosols extinguish fires chemically, interfering with the flame chain reaction by removing the reactive free radicals. The action takes place mainly on the surface of the solid aerosol particles, and therefore, the finer the particles the more effective the extinguishing mechanism will be. Inert gases generated by the forming reaction of condensed aerosols also contribute to extinguishing the fire. The condensed-aerosol-generating combustion process provides sufficient energy for a rapid discharge and efficient distribution of the aerosol. No propelling gas is required for the aerosol delivery. A condensed aerosol generator typically has one or more discharge outlets. Condensed aerosol is self-generated by a combustion process of a solid aerosol-forming compound that is contained in a suitable housing. Condensed aerosol generators contain an actuating device to activate the aerosol-forming compound.
Contents Page Foreword Introduction 1 Scope... 3 2 Normative references... 3 3 Definitions... 4 4 Use and limitations... 5 5 Requirements... 6 6 Storage, packing and marking... 9 7 Inspection and methods of test... 10 Annex A (informative) Notes to purchasers... 17 Annex B (normative) Fire classification symbols... 18 Annex C (informative) Toxicity... 20 Annex D (informative) Quality verification of disposable portable condensed aerosol fire extinguishers... 22 Bibliography... 23 1
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Disposable portable condensed aerosol fire extinguishers 1 Scope This standard specifies the characteristics of disposable portable condensed aerosol fire extinguishers that are of charge mass not exceeding 1 000 g and that are suitable for use on class A, B, C or F fires. Requirements are specified for the compulsory minimum performance in extinguishing class A, B, C and F test fires. NOTE 1 Units that meet the requirements of this standard fall within the category of portable, non-refillable fire extinguishers. NOTE 2 The fire performance tests in this standard are the minimum necessary to determine fire type suitability and do not equate to a formal fire rating. As a result, these portable, non-refillable units are not intended to be an equivalent or replacement for more traditional type fire extinguishers that carry a formal fire rating. 2 Normative references The following referenced documents are indispensable for the application 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. Information on currently valid national and international standards can be obtained from the SABS Standards Division. ISO 4582, Plastics Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources. SANS 1091, National colour standard. SANS 7253/ISO 7253, Paints and varnishes Determination of resistance to neutral salt spray (fog). SANS 10105-1, The use and control of fire-fighting equipment Part 1: Portable and wheeled (mobile) fire extinguishers. SANS 10229-1, Transport of dangerous goods Packaging and large packaging for road and rail transport Part 1: Packaging. SANS 10229-2, Transport of dangerous goods Packaging and large packaging for road and rail transport Part 2: Large packaging. SANS 15779:2012/ISO 15779:2011, Condensed aerosol fire extinguishing systems Requirements and test methods for components and system design, installation and maintenance General requirements. 3