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5.3.1.4.(3) | Application | Intent |
| OS1 | OP1 | OS1 | OS1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Recirculation or return to the building of
air from dust collectors referred to in Article 5.3.1.3. that have
a capacity greater than 0.5 m3/s.
This applies to buildings or parts of buildings where combustible dusts are
produced in quantities or concentrations that create an explosion or fire
hazard.
Application 2: This also applies to dry powder spray coating operations
covered in Sentence 5.4.5.2.(1). |
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| Intent | Intent 1: [Clause (a)] To limit the probability that dust will return
into the atmosphere of the building, which could lead to an ignitable or hazardous
accumulation of dust, which could lead to a fire or explosion, which could
lead to harm to persons. Intent 2: [Clause (b)] To limit the probability that a fire or explosion
inside a dust collector will spread beyond the dust collector and inside the
building, which could lead to harm to persons. Intent 3: To permit exhaust air to return to the building if measures
are taken that would limit the probability that ignitable concentrations of
dusts will return into the building, which could lead to a fire or explosion
in the dust collecting system, which could lead to harm to persons.
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