Why adopting ISO 13571 to define hazardous effects of effluents in case of fire?
ISO 13571 became a standard in June 2007 well recognized and approved also by IEC (it is referred in IEC 60695-7-1) as the fundamental standard is this respect. This standard also includes the measure of incapacitation1 threshold taking into account the asphyxiant gases as well as the irritant gases (0.3 FEC2 and/or 0.3 FED3). (1) Incapacitation – state of physical inability to accomplish a specific task, for example, the inability to take effective action to escape from a fire. – IEC 60695-7-1 (2) fractional effective concentration, FEC – ratio of the concentration of an irritant to that expected to produce a given effect on an exposed subject of average susceptibility. NOTE 1 As a concept, FEC may refer to any effect, including incapacitation, lethality or even other endpoints. NOTE 2 When not used with reference to a specific irritant, the term FEC represents the summation of FECs for all irritants in a combustion atmosphere. – IEC 89/650/FDIS (3) fractional effective dose, FED – ra
