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3.5.4.2 Discharge time
.1 halogenated agents should be discharged at a rate sufficient to achieve delivery of 95% of the minimum design quantity in 10 s or less.
.2 inert gas agents should be discharged at a rate sufficient to achieve 85% of the minimum design quantity in 120s or less.
3.5.4.3 Soak time
After the end of agent discharge the test enclosure should be kept closed for 15 min.
3.5.5 Measurements and observations
3.5.5.1 Before test
.1 temperature of test enclosure, fuel and engine mock-up
.2 initial weights of agent containers
.3 verification of integrity agent distribution system and nozzles
.4 initial weight of wood crib
3.5.5.2 During test
.1 start of the ignition procedure
.2 start of the test (ignition)
.3 time when ventilating openings are closed
.4 time when the extinguishing system is activated
.5 time from end of agent discharge
.6 time when the fuel flow for the spray fire is shut off
.7 time when all fires are extinguished
.8 time of re-ignition, if any, during soak period
.9 time at end of soak period
.10 at the start of test initiate continuous monitoring as per 3.2.4.
3.5.6 Tolerances
Unless otherwise stated, the following tolerances should apply:
.1 length ±2% of value
.2 volume ±5% of value
.3 pressure ±3% of value
.4 temperature ±5% of value
.5 concentration ±5% of value
These tolerances are in accordance with ISO standard 6182/1, February 1994 edition [4].
