BS ISO 834-11:2014

1   Scope The assessment detailed in this part of ISO 834 is designed to cover a range of thicknesses of the fire protection material, a range of steel sections characterized by their section factors, a range of design temperatures , and a range of valid fire resistance classification periods. This part of ISO 834 covers fire protection systems that include both passive (boards, mats, slabs, and spray materials) and reactive materials as defined in this document. The assessment procedure is used to establish

       a)  on the basis of the temperature data derived from testing loaded and unloaded specimens, a correction factor and practical constraints on the use of the  fire protection  system (the physical performance) and 
   
   
     
       b)  on the basis of the temperature data derived from testing unloaded short steel specimens, the thermal properties of the  fire protection  material (the thermal performance).