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5.5.4.3.(1) | Application | Intent |
| OS1 | OP1 | OP1 | OP1 | OS1 | OS1 | OS1 | OS1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Construction of exhaust ventilation systems for power-ventilated
enclosures, where, as stated in Sentence 5.5.4.2.(1):
This applies to laboratories where dangerous goods, including flammable
liquids and combustible liquids, are
used in normal laboratory operations in quantities or in a manner that creates
a fire or explosion hazard.
Application 2: This also applies where perchloric acid is heated
above normal ambient temperature, as stated in Sentence 5.5.5.5.(1).
Exceptions:
except as stated in Clauses 5.5.4.4.(1)(a) and (b), and Sentences 5.5.4.4.(2) and (3),
which apply to enclosure construction and combustibility.
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| Intent | Intent 1: To limit the probability that combustible construction will
increase fire severity, which could lead to the spread of a fire to other
parts of the building, which could lead to harm to persons. |
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