BS 5306-3:1985

Foreword
Committees responsible
Code of practice
Section one. General
0 Introduction
1 Scope
2 Definitions
Section two. Planning and provision of extinguishers
3 General considerations
4 Suitability of extinguishers for various classes of
    fire
5 Distribution of extinguishers according to
    classification and rating
6 Siting of extinguishers
Section three. Inspection, maintenance and test
               discharging of extinguishers
7 Routine inspection by the user
8 Annual inspection, service and maintenance by a
    competent person
9 Periodic testing and discharge
10 Pressure testing of halon and carbon dioxide
    cylinders
Section four. Recharging of extinguishers and remedial
               action
11 Recharging
12 Replacement of components
13 Date marking of recharge extinguishers
Appendices
A The system of rating extinguishers by fire tests in
    BS 5423
B The practical effectiveness of extinguishers and the
    derivation of table 1
C Examples in the application of the recommendations
    for minimum provision of extinguishers
D Rating of extinguishers manufactured in accordance
    with obsolete British Standards
E Guidance for the evaluation of damage and corrosion
Tables
1 Maximum area of class B fire (deep liquid) for which
    extinguishers are suitable
2 Dimensions of class A test fires
3 Dimensions of class B test fires
4 Tank arrangement in example 3

Deals primarily with portable fire extinguishers conforming to BS 5423 which can be carried by one person and which are used for the protection of buildings and other premises and their contents. Much of the content could be applied to extinguishers used for other purposes.