ISBN 978-0-626-23127-9 SOUTH AFRICAN NATIONAL STANDARD Portable refillable fire extinguishers 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 2006 Amended to update referenced standards, to change the requirements for the components of a fire extinguisher, to correct the procedure for the ageing test, to correct a footnote in table D.2, and to include a title for the figure in annex E. Amdt 2 2009 Amended to move reference to legislation to the forward, to update the title of the annex on indication of test fire rating, and to add tables for minimum fire ratings. Foreword This South African standard was approved by National Committee SABS SC 21A, 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 supersedes SANS 1910:2006 (edition 1.1). This document was published in August 2009. A vertical line in the margin shows where the text has been technically modified by amendment No. 2. Reference is made in clause 1 to the "relevant national legislation". In South Africa this means the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993). Amdt 2 Annexes A, B, C and D form an integral part of this standard. Annexes E and F are for information only.
Contents Page Foreword 1 Scope... 3 2 Normative references... 3 3 Definitions... 4 4 General requirements... 5 5 Design and construction... 8 6 Performance requirements... 14 7 Packing and marking... 15 8 Inspection and methods of test... 17 8.1 Inspection... 17 8.2 Leakage test... 17 8.3 Design pressure test for complete fire extinguisher... 17 8.4 Test for corrosion resistance of the assembled fire extinguisher... 18 8.5 Test for the design, construction and quality of plastic components... 18 8.6 Test for resistance of plastic components to burst pressure... 18 8.7 Impact test on operating heads... 19 8.8 Test for resistance of hose to kinking... 20 8.9 Hydrostatic pressure test on hose assemblies... 21 8.10 Pressure relief valve test... 21 8.11 Intermittent discharge test... 21 8.12 Fire extinguisher performance test... 22 8.13 Test for electrical conductivity... 22 Annex A (normative) Notes to purchasers... 23 Annex B (normative) Indication of test fire rating and minimum fire ratings... 24 Amdt 2 Annex C (normative) Fire classification symbols... 25 Annex D (normative) Class test fires... 26 Annex E (informative) Recommended type of large and small wall brackets for mounting of fire extinguishers... 28 Annex F (informative) Quality verification of portable refillable fire extinguishers... 29 Bibliography... 29 1
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Portable refillable fire extinguishers 1 Scope 1.1 This standard covers the principal requirements for the safety, reliability and performance of portable, stored pressure, refillable type fire extinguishers suitable for use on fires of classes A, B and C. 1.2 This standard covers the requirements for water type, foam type and dry chemical powder type fire extinguishers. 1.3 It does not cover the requirements for CO 2 fire extinguishers. For the requirements of this fire extinguisher, refer to SANS 1567. 1.4 It does not cover Halon type extinguishers. (South Africa has agreed to abide by the Montreal Agreement on the use of CFC products. However, maintenance on this type of extinguisher is still carried out in terms of SANS 1475-1.) Amdt 1 1.5 It does not cover the cartridge operated extinguisher. NOTE 1 External cartridge operated extinguishers should be approved by the approving authority. NOTE 2 In terms of the National Building Regulations (see SANS 10400), every type of portable fire extinguisher distributed in South Africa has to comply with the requirements of a local standard. (See the relevant national legislation (see foreword)). Details of the regular control, inspection and maintenance of fire extinguishers are given in SANS 10105-1 and SANS 1475-1. Amdt 1; amdt 2 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. All standards are subject to revision and, since any reference to a standard is deemed to be a reference to the latest edition of that standard, parties to agreements based on this standard are encouraged to take steps to ensure the use of the most recent editions of the standards indicated below. 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 988, Braided reinforced rubber hose for air and water. SANS 1086, Flexible polyvinyl chloride (PVC) pressure hose. 3