Hand calculation methods which account for. mass loss

1 Hand calculation methods which account for mass loss 

Equation (7.1) takes no account,of any mass loss through the relief system before the peak reaction rate is reached. This is approximately true in the case where gas-only venting occurs right until the peak rate. It could be expected to be very conservative in cases where homogeneous two-phase relief occurred, for example due to inherent foaminess of the reacting mixture (see Annex 3). 

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