FM DS 7- 6
Plastic and Plastic- Lined
Tanks with Electric Immersion
Heaters
( 1986 Edition)
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3. Where construction or occupancy is combustible, or where there is extensive combustible ductwork or hoods, provide automatic sprinklers.
( See Data Sheet 7-78,Industrial Exhaust Systems , and Data Sheet 1-56,Clean Rooms, for further information. )
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FM DS 7- 7
Semiconductor Fabrication
( 1997 Edition)
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2.2.3 Fume Exhaust System
a. Replace all PVC, polypropylene and combustible flexible ducts with FMRC- Approved fume/ smoke exhaust systems. Under heat, unapproved materials will collapse and defect any smoke/ contaminant control design. Also, burning PVC develops corrosive fumes. If ducts cannot feasibly be replaced, they should be protected with automatic sprinkler protection in accordance with Data Sheet 7-78,Industrial Exhaust Systems b. Provide automatic sprinkler protection inside all other nonmetal duct systems with diameters of 6 in. ( 150 mm) or larger. Automatic sprinklers should be designed and installed in accordance with Data Sheet 7-78
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FM DS 7- 27
( Spray Application of
Flammable &
Combustible Liquids
( 1989 Edition)
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2.2.1.3 Protection
2. Provide automatic sprinkler protection for exhaust ducts from spray booths or spray rooms in accordance with Data Sheet 7-78,Industrial Exhaust Systems. If exhaust ducts are manifolded, provide a sprinkler at the junction of each booth exhaust duct with the manifold.
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FM DS 7- 37
Cutting Oils
( 1991 Edition)
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2.6 Fire protection
2. Automatic sprinkler protection should be installed in hoods, ducts and scrubbing equipment having combustible construction or significant oily deposits in accordance with Factory Mutual Engineering and Research Data Sheet 7- 78, Industrial Exhaust Systems.
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FM DS 7- 64
Aluminum Industry
( 1993 Edition)
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2.6.4.5 Fume exhaust
Automatic fire protection should be provided inside the duct or ducts, and for the filter as recommended in 2.6.4.2. The preferred protection Is automatic sprinklers. An automatic carbon dioxide extinguishing system is acceptable, subject to the provision of a manual backup sprinkler or water spray system. ( 2.6.4.2 - area 8: within the duct to the fume treatment equipment)
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FM DS 7- 73
Dust Collectors & Collection
Systems
( 1979 Edition)
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Precipitators Normally Processing Combustible Material
b. Locate an automatic sprinkler inside each duct penetration at roof level. Locate an automatic sprinkler inside the duct at each floor penetration for multistory buildings. Ensure that the sprinkler temperature rating is 50 F ( 28 C) higher than gas temperatures in the duct. f. See Data Sheet 7- 78, Industrial Exhaust Systems, for further recommendations.
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