This document specifies the requirements and describes the methods for design, installation, testing and maintenance of low, medium, and high expansion foam fire extinguishing systems. Foam systems may be used to suppress the release of toxic vapours but this application is outside the scope of this document. This document provides guidance for the design of various foam systems available to persons with knowledge and experience in determining the selection of foam fire extinguishing systems which will be effective in protecting specific hazard configurations. For the application of this standard, a risk assessment by a qualified and experienced person should be performed for both new and existing systems, however the risk assessment is outside the scope of this document. This document does not cover a risk analysis carried out by a competent person. Nothing in this document is intended to restrict new technologies or alternative arrangements, provided that the level of foam system performance prescribed in this standard is not lowered, and supported by documented evidence\/test reports. All foam systems are generally unsuitable for the following: – chemicals, such as cellulose nitrate, that release sufficient oxygen or other oxidizing agents which can sustain combustion; – energized unenclosed electrical equipment; – metals such as sodium, potassium and sodium-potassium alloys which are reactive to water; – hazardous, water-reactive materials such as triethyl-aluminium and phosphorous pentoxide; – combustible metals such as aluminium and magnesium.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3 Terms and definitions 3.1 Definitions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3.2 Abbreviations 4 Foam extinguishing systems 4.1 General 4.1.1 General requirements <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.1.2 Application rates <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.1.3 Environmental considerations 4.1.4 Planning <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.1.5 Documentation 4.1.6 Supplementary manual foam fire fighting provisions 4.1.7 Equipment <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 4.2 Water supply 4.2.1 Water demand 4.2.2 Operating time 4.2.3 Quality of water <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.2.4 Power supply for water pumps 4.3 Foam concentrate 4.3.1 General 4.3.2 Foam concentrate supply \u2013 low and medium expansion foams <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.3.3 Foam concentrate pumps 4.3.3.1 General 4.3.3.2 Power supply for foam concentrate pumps 4.3.4 Supplementary external connections 4.4 Foam proportioners 4.5 Pipework 4.5.1 Water and foam solution pipework <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4.5.2 Foam concentrate piping 4.5.3 Non Newtonian foam concentrate 4.5.4 Piping of aspirated foam (including that for subsurface foam applications) 4.5.5 Marking <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 4.6 Foam discharge outlets and generators 4.7 Operation and control systems 4.7.1 Detection of fires 4.7.2 Release of fixed foam extinguishing systems <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 4.7.3 Alarms 5 Flammable liquid storage tanks, bunds and process areas 5.1 General <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.2 Fixed cone roof tanks 5.2.1 General <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 5.2.2 Sub surface <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.2.3 Restrictions for semi-subsurface-mode 5.2.4 Restrictions for subsurface mode <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.3 Floating roof tanks 5.3.1 General 5.3.2 Number of foam discharge outlets for floating roof tanks 5.3.3 Rimseal protection <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 5.4 Bunded\/diked areas and process areas <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 6 Foam sprinkler and deluge systems 6.1 Deluge systems 6.1.1 Deluge applications 6.1.2 Deluge limitations 6.1.3 Deluge design 6.2 Foam enhanced sprinkler systems 6.2.1 Foam enhanced sprinkler applications 6.2.2 Foam enhanced sprinkler limitations 6.2.3 Foam enhanced sprinkler design <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 6.3 Foam concentrate 6.3.1 Aspirated foams 6.3.2 Non aspirated foams 6.4 Foam proportioning 6.5 Drain and flushing connections <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 6.6 Supplementary hose streams 7 High expansion foam systems 7.1 General <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 7.2 Foam concentrate 7.3 Equipment 7.4 System design 7.5 Equipment location considerations 7.6 Personnel safety <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 7.7 Discharge rate 7.8 Discharge time 8 Marine loading and unloading docks 8.1 Water supplies <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 8.2 Foam concentrate 8.3 Foam water monitors 8.4 Below dock foam systems 9 Aircraft hangars 9.1 General 9.2 Fire detection <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 9.3 System design philosophy <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 9.4 System duration 9.5 Foam and water pumps 9.6 Acceptable application methods 9.7 Foam types 9.8 Monitors 9.9 Foam-water deluge systems <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | 9.10 Medium expansion systems (Type 3 hangars only) 9.11 High expansion systems 9.12 Handlines 9.13 Commissioning tests <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 10 Liquefied flammable gases (LNG\/LPG) 10.1 General 10.1.1 Liquefied Natural Gas (LNG) 10.1.2 Liquefied Petroleum Gas (LPG) 10.2 Controlled burn-off 10.3 Un-ignited spills <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 10.4 Fire detection 10.5 Foam properties 10.6 Foam proportioning system 10.7 Application techniques <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 11 Commissioning, testing, and periodic inspections 11.1 Instruction of operating personnel 11.2 Commissioning 11.2.1 General 11.2.2 Visual inspection 11.2.3 Pressure tests 11.2.4 Tests 11.2.5 Completion certificate <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 11.3 The periodic inspection and testing of foam systems 11.3.1 General 11.3.2 Inspections 11.3.2.1 Weekly inspections (by user\/ trained personnel) 11.3.2.2 Monthly inspection (by user\/ trained personnel) <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 11.3.2.3 Half-yearly inspections (foam system specialists) 11.3.2.4 Yearly inspections (foam system specialists) <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | 11.3.2.5 Other inspections 11.4 Shut-down 11.5 Maintenance 11.6 Alterations <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fixed firefighting systems. Foam systems – Design, construction and maintenance<\/b><\/p>\n |