1.0.1 This Standard has been worked out for the purpose of designing gas fire extinguishing systems reasonably, reducing fire damage, and protecting the safety of human body and properties.
1.0.2 This code applies to the design on total flooding extinguishing systems of hepta- fluoropropane, mixed gas IG541, and condensed fire extinguishing aerosol.
1.0.3 Design of gas fire extinguishing systems shall comply with the national guiding principles and policies, and be safe, technologically advanced, economic and reasonable.
1.0.4 Products and components of the system applied according to the design must be in accordance with national standards and regulations.
1.0.5 Besides complying with this standard, the design of gas fire extinguishing systems shall also comply with other relevant current national standards.
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Design Requirements
3.1 General Provisions
3.2 System Set-up
3.3 Extinguishing Systems of Hepta-Fluoropropane
3.4 IG541 Mixed Gas Fire-Extinguishing System
3.5 Pre-engineered System of Condensed Fire-Extinguishing Aerosol
4 System Components
4.1 General Provisions
4.2 Special Requirements on Components of Hepta-Fluoropropane Extinguishing Systems
4.3 Special Requirements on Components of IG541 Mixed-Gas Extinguishing Systems
4.4 Special Requirements on Components of Pre-Engineered Systems of Condensed Fire-Extinguishing Aerosol
5 Operations and Controls
6 Safety Requirements
Appendix A Concentrations of Extinguishing and Inerting
Appendix B Modified Coefficients of Height Above Sea level
Appendix C Jetting Rate of Equivalent Orifice Unit Area about Nozzles of Hepta- Fluoropropane Extinguishing System
Appendix D Nozzle Specifications and Equivalent Orifice Area
Appendix E Coefficients of Both Pressure and Density on Pipe Channels of IG541 Mixed Gas Extinguishing Systems
Appendix F Jetting Rate of Equivalent Orifice Unit Area about Nozzles of IG541 Mixed Gas Extinguishing System
Appendix G Concentrations of No-Toxicity Response (NOAEL) and with Toxicity Response (LOAEL) and Technological Properties of Fire Agent
Explanation of Wording in This Code
1.0.1 This Standard has been worked out for the purpose of designing gas fire extinguishing systems reasonably, reducing fire damage, and protecting the safety of human body and properties.
1.0.2 This code applies to the design on total flooding extinguishing systems of hepta- fluoropropane, mixed gas IG541, and condensed fire extinguishing aerosol.
1.0.3 Design of gas fire extinguishing systems shall comply with the national guiding principles and policies, and be safe, technologically advanced, economic and reasonable.
1.0.4 Products and components of the system applied according to the design must be in accordance with national standards and regulations.
1.0.5 Besides complying with this standard, the design of gas fire extinguishing systems shall also comply with other relevant current national standards.
Contents of GB 50370-2005
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Design Requirements
3.1 General Provisions
3.2 System Set-up
3.3 Extinguishing Systems of Hepta-Fluoropropane
3.4 IG541 Mixed Gas Fire-Extinguishing System
3.5 Pre-engineered System of Condensed Fire-Extinguishing Aerosol
4 System Components
4.1 General Provisions
4.2 Special Requirements on Components of Hepta-Fluoropropane Extinguishing Systems
4.3 Special Requirements on Components of IG541 Mixed-Gas Extinguishing Systems
4.4 Special Requirements on Components of Pre-Engineered Systems of Condensed Fire-Extinguishing Aerosol
5 Operations and Controls
6 Safety Requirements
Appendix A Concentrations of Extinguishing and Inerting
Appendix B Modified Coefficients of Height Above Sea level
Appendix C Jetting Rate of Equivalent Orifice Unit Area about Nozzles of Hepta- Fluoropropane Extinguishing System
Appendix D Nozzle Specifications and Equivalent Orifice Area
Appendix E Coefficients of Both Pressure and Density on Pipe Channels of IG541 Mixed Gas Extinguishing Systems
Appendix F Jetting Rate of Equivalent Orifice Unit Area about Nozzles of IG541 Mixed Gas Extinguishing System
Appendix G Concentrations of No-Toxicity Response (NOAEL) and with Toxicity Response (LOAEL) and Technological Properties of Fire Agent
Explanation of Wording in This Code
