This Digest provides an overview of fixed gas extinguishing systems for specifiers, users, insurers and approving authorities. It introduces and outlines the common systems, and explains the key standards, regulations, approval and certification schemes. Planning, specification, and other issues related to selecting and specifying a fixed gas extinguishing systems are discussed, and temperature, pressure and oxygen concentration data from a range of full-scale room tests is presented.

Illustrations
16 line drawings, 7 photos

Pages: 12

Contents
" INTRODUCTION AND BACKGROUND
" DESCRIPTION OF SYSTEMS
" - General
" - Extinguishing gas
" - Detection and actuation system
" - Delivery and supply system
" - Room or protected enclosure
" FULL-SCALE ROOM TEST DATA
" - Pipework pressure and temperature data
" - Room temperature and pressure
" - Room design concentration
" STANDARDS
" - Design, installation and maintenance of systems
" - Components
" REGULATIONS, APPROVAL AND CERTIFICATION
" - Regulations
" - Installer approval
" - System approval
" PLANNING AND SPECIFICATION
" OTHER ISSUES
" - Design concentrations
" - Safety considerations
" - Storage
" - Vents
" - Environmental issues
" CONCLUSIONS
" References