As per ASTM E84 standards fire properties of building material are categorized based on SMOKE DEVELOPMENT, FIRE SPREAD properties of that particular material. EPS fire properties rated as CLASS A or CLASS 1 as its fire properties complies with in the specified range of CLASS A or 1

  • EPS Smoke development index ( SDI): 200  As per ASTM E84 (450 as Max)
  • EPS Flame Spread Index (FSI) :  10  (Class A) As per ASTM E84 ( 0-25 as Max)
Flame-Spread Index Smoke Development
Class 1 or A 0 – 25 450 Maximum
Class 2 or B 26 – 75 450 Maximum
Class 3 or C 76 – 200 450 Maximum