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3.2.7.10.(1)
OP1OS1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Manual or automatic venting of smoke and toxic gases from storage areas under fire conditions, where the collective individual storage areas for dangerous goods exceed 10 m2 in a fire compartment.
This applies to buildings or parts of buildings used for the short- or long-term storage of dangerous goods in packages or containers when stored in single fire compartments in quantities greater than those shown in Table 3.2.7.1., whether raw or waste materials, goods in process, or finished goods.
Exceptions: 
except as exempted in:
  • Sentence 3.1.1.4.(1), which applies to:
    • the storage and dispensing of Class 2.1 flammable gases at fuel dispensing stations, and
    • facilities operated by manufacturers or distributors [handling or storing more than 1 500 kg, as stated in Appendix A] of Class 2 gases,
  • Sentence 3.2.1.1.(2), which applies to high rack storage warehouses with storage heights greater than 13 m, and
  • Sentence 3.2.9.2.(4), which applies to ammonium nitrate.
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Intent
Intent 1: 
To limit the probability that smoke and toxic gases will accumulate in a fire situation, which could lead to delays or inefficiencies in emergency response operations [e.g. poor visibility], which could lead to the spread of fire to other parts of the building, which could lead to harm to persons, including emergency responders.
Intent 2: 
To limit the probability that smoke and toxic gases will accumulate in a fire situation, which could lead to delays in egress by emergency responders [e.g. poor visibility], which could lead to harm to emergency responders.
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