This document specifies a method for determining the kinetics and yields of gaseous emissions from aspecimen exposed to radiant heat in a cone calorimeter. Gas yields are determined by exposing smallrepresentative specimens to an external heat flux with or without spark ignition. The concentrationsof specific gases in the effluent (smoke) are measured. In combination with calculated masses of gases,their yields from the specimen mass, mass loss or mass loss rate can be determined. This documentuses Fourier-Transform Infrared (FTIR) spectroscopy as described in ISO 19702, with additionalinformation on the test apparatus and gas analyser suitable for this specific application.