IS 15497:2004 is the Indian Standard (BIS) for gaseous fire extinguishing systems - ig 01 extinguishing systems. This standard specifies requirements for the design, installation, testing, and maintenance of gaseous fire extinguishing systems using IG-01 (100% Argon). It is intended for total flooding applications in enclosed spaces like data centers and archives, where it extinguishes fire by reducing the oxygen concentration.
Gaseous Fire Extinguishing Systems - IG 01 Extinguishing Systems
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Agent Storage Pressure | 150 bar or 200 bar at 21°C | 150 bar, 200 bar, and 300 bar at 15°C or 21°C | ISO 14520-1 / EN 15004-1 |
| Max Concentration in Occupied Areas | Shall not result in oxygen concentration < 12% (equates to 43% IG-01) | Up to 43% (No Observed Adverse Effect Level - NOAEL) for an exposure time up to 5 minutes | NFPA 2001 |
| Safety Factor (Class A Fires) | 1.2 times the minimum extinguishing concentration | Typically 1.2 (for cup-burner data) or 1.3 (for certain full-scale fire tests) | NFPA 2001 |
| Max Discharge Time (Class A/B) | Not more than 60 s | Shall not exceed 60 s to achieve 95% of the minimum design concentration | NFPA 2001 |
| Minimum Concentration Holding Time | Recommended minimum period of 10 min | Shall be maintained for a period of at least 10 minutes or for a time sufficient for emergency response | ISO 14520-1 |
| Piping Hydrostatic Test Pressure | 1.5 times the maximum expected pressure for 2 minutes | 1.5 times the maximum anticipated pressure at 20°C for 2 minutes | NFPA 2001 |