IS 15835 : 2009 Gaseous Fire Extinguishing Systems - HCFC-125 Extinguishing Systems

1 Scope

1.1 This standard sets out speeific requirements forthe design and installation of total flooding fireextinguishing systems employing HCFC- 125 gasextinguishant. This standard is applicable to singlesupply as well as distributed supply systems.

1.2 This standard complements various generalrequirements applicable to all types of gaseousfire-extinguishing systems (Halocarbon as well as Inertgas systems) listed in IS 15493. As such, both thesestandards should be read together before designing asystem. Where requirements in both the standardsdiffer, this standard shall take precedence.

1.3 This standard covers total flooding systems ofHCFC-25 operating at nominal pressures of 2.5 MPaand 4.2 MPa only at 21�C.

2 Reference

The standard listed below contains provision whichthrough reference in this text, constitutes provision ofthis standard. At the time of publication, the editionindicated was valid. All standards are subject torevision and parties to agreements based on thisstandard is encouraged to investigate the possibilityof applying the most recent edition of the standardindicated below: