A set of products has been tested in the Swedish box test, SIS 02 48 23 (NT FIRE 004). The equipment was supplemented with a fine thermocouple, an oxygen analyzer and a new smoke intensity gauge. Thirteen different products were tested including wood based materials, gypsum plaster board, wall-papers and plastics. The results are shown as exhaust gas temperature, RHR and light transmission as a function of time. This study is a part of a larger project "Fire Hazard - Fire Growth in Compartments in the Early Stage of Development (Pre-Flashover)", where the same 13 products were tested in full scale as well as according to several bench scale methods.