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IS 2726:1988 is the Indian Standard (BIS) for fire safety of industrial buildings: cotton ginning and pressing (including cotton seed delivering)factories. This code lays down the essential requirements for the fire safety of industrial buildings specifically used for cotton ginning, pressing, and cotton seed delivery. It covers site location, building construction, electrical installations, and fire extinguishing equipment to mitigate the high fire risks associated with highly combustible cotton dust and lint.
Code of practice for fire safety of industrial buildings: Cotton ginning and pressing (including cotton seed delivering)factories
Directly addresses fire protection for facilities processing cotton and other fibers, including ginning operations.
NFPA 652:2024National Fire Protection Association, USA
MediumCurrent
Standard on the Fundamentals of Combustible Dust
Provides the foundational requirements for managing combustible dust hazards, a primary risk in cotton processing.
NFPA 61:2024National Fire Protection Association, USA
MediumCurrent
Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities
Covers combustible dust hazards from agricultural products, which is analogous to the hazards of raw cotton lint and dust.
NFPA 101:2021National Fire Protection Association, USA
LowCurrent
Life Safety Code
Provides general life safety requirements for industrial occupancies, including means of egress, relevant to any factory.
Key Differences
≠The IS code is highly prescriptive (e.g., fixed wall fire ratings, distances), whereas modern international standards like NFPA 652 are more performance-based, requiring a Dust Hazard Analysis (DHA) to determine and mitigate specific risks.
≠International standards (e.g., FM Global 7-1) explicitly recommend modern technology such as spark/ember detection and suppression systems for pneumatic conveyors, which are not mentioned in the 1988 Indian Standard.
≠NFPA standards provide a detailed hazardous area classification system (e.g., Class II, Division 1/2, Group G for cotton dust) for selecting electrical equipment, which is more nuanced than the IS code's general requirement for 'flameproof' fittings.
≠IS 2726 provides rules for unsprinklered bale storage, whereas modern standards like FM Global Data Sheet 8-7 strongly discourage it and consider automatic sprinkler protection mandatory for indoor baled cotton storage.
Key Similarities
≈All standards emphasize the critical importance of segregating high-hazard areas like ginning and bale opening from storage and other occupancies using fire-rated barriers.
≈Both the IS code and international equivalents recognize accumulated cotton lint and dust as a primary fuel source and mandate strict, frequent housekeeping and cleaning programs.
≈Automatic sprinkler systems are identified as the principal fire protection measure in both IS 2726 and international standards like FM 7-1 and NFPA 13 for all processing and storage areas.
≈A fundamental principle across all standards is the strict control of ignition sources, including 'No Smoking' policies, hot work permit systems, and specifications for electrical installations.
≈All standards require the provision of a reliable and adequate water supply for firefighting, including hydrants and sprinkler system demand, with specifications for duration and pressure.
Parameter Comparison
Parameter
IS Value
International
Source
Fire wall rating between process & storage
Not less than 4 hours.
Typically 3 hours for separating major production areas.
FM Global Data Sheet 7-1
Maximum travel distance to an exit
22.5 meters.
75 ft (approx. 23 m) for high-hazard industrial occupancies.
NFPA 101:2021
Sprinkler requirement for bale storage
Rules provided for unsprinklered storage up to 6m height, implying sprinklers are not mandatory.
Automatic sprinkler protection is considered mandatory for all indoor storage of baled cotton.
FM Global Data Sheet 8-7
Open space surrounding factory buildings
A clear space of not less than 4.5 m.
Variable, typically 10-50 ft (3-15 m), based on building construction, height, and exposure analysis.
General practice in NFPA 80A / FM Global
Location of dust collection equipment
Shall preferably be installed in the open.
Dust collectors and their fans shall be located outside of buildings.
NFPA 652:2024
First-aid hose reel length
Not more than 22.5 m.
Maximum length of 1 1/2 in. (40 mm) hose is 100 ft (30.5 m).
NFPA 14:2019
Sprinkler head temperature rating (general process area)
High temperature rating (93°C).
Ordinary [135-175°F (57-79°C)] unless adjacent to specific heat sources.
NFPA 13:2022
⚠ Verify details from original standards before use
Key Values3
Quick Reference Values
Minimum clearance between cotton storage and other processing buildings15 m
Minimum width of access roads for fire appliances6 m
Maximum travel distance to a fire extinguisher15 m
What type of fire extinguishers are recommended for these factories?+
Water-type extinguishers for cotton material fires, and dry powder or CO2 extinguishers for electrical installations.
Why is spatial separation so heavily emphasized in this code?+
Because cotton fires spread extremely rapidly through lint and airborne dust, making physical separation of storage and processing blocks the most effective containment strategy.
Are automatic sprinkler systems required?+
Yes, they are highly recommended in ginning and pressing areas due to the flash-fire nature of loose cotton.