ISO 13571-2012 pdf free download.Life-threatening components of fire – Guidelines for the estimation of time to compromised tenability in fires. ISO 13571 is one of many tools available for use in fire safety engineering. Ills intended to be used in conjunction with models for analysis of the initiation and development of fire, fire spread, smoke formation and movement, chemical species generation, transport and decay, and people movement, as well as fire detection and suppression. This International Standard is to be used only within this context. This International Standard is intended to address the consequences of human exposure to the life-threatening components of fire. The time-dependent concentrations of fire effluents and the thermal environment of a fire are determined by the rate of fire growth, the yields of the various fire gases produced from the involved fuels, the decay characteristics of those fire gases and the ventilation pattern (see A,1). Once these are determined, the methodology presented in this International Standard can be used for the estimation of the time at which individuals can be expected to experience compromised tenability. With care, this guidance can also be applied to estimation of the time limit for rescuing people who are immobile due…