What is the primary fire hazard mitigated by this code?

The handling, storage, and processing of Carbon Disulphide (CS2), which is highly flammable, toxic, and easily ignited.

What type of electrical fittings are mandated in processing zones?

Flameproof and intrinsically safe electrical installations conforming to the relevant hazardous area classifications.

Are automatic fire fighting systems required?

Yes, high-hazard areas like CS2 storage and churning sections require automatic water spray/deluge or sprinkler systems.

IS 3058

: 1990

Code of practice for fire safety of industrial buildings: Viscose rayon yarn and/or staple fibre plants

CurrentSpecializedCode of PracticeFire Safety · Fire Safety

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This standard provides comprehensive fire safety requirements for the layout, construction, and protection of industrial buildings used as viscose rayon yarn and staple fibre plants. It specifically addresses the severe fire and explosion hazards associated with handling highly volatile chemicals like carbon disulphide (CS2) during the manufacturing process.

Code of practice for fire safety of industrial buildings: Viscose rayon yarn and/or staple fibre plants

Quick Reference Values

Auto-ignition temperature of CS2Approx 90°C

Flash point of CS2Approx -30°C

Explosive limits of CS2 in air1.3% to 50% by volume

Practical Notes

Carbon disulphide (CS2) vapors are heavier than air and can travel along the floor to ignition sources; floor-level extraction and proper trench design are critical.

Electrical equipment in churning, spinning, and CS2 storage areas must be strictly flameproof due to the exceptionally low auto-ignition temperature of CS2.

CS2 bulk storage tanks are typically blanketed with water or inert gas to prevent vapor escape and ignition.