F1.0 

The material shall have the following properties:
F1.1 Density-32kg/m3 minimum.
F1.2 Compressive Strength (at 10% strain) — 2.4 kgcm2 minimum.
F1.3 Closed cell content — 92% minimum.
F1.4 Water Uptake-400 cc/m2 maximum.
F1.5 Dimensional Stability — (original linear dimensions=.00).
  • F1.5.1Temperature cycling-15° C to +70°C.
  • F1.5.214 days under 100mm head of kerosene, toluene (conforming to ASTM/D841/1977), xylene (conforming to ASTM/D843/1977) or distillate (90 minimum).
F1.6 Self-extinguishing to A.S.T.M. D-1692/68-Burning rate maximum 10cm per minute.
F1.7 High resistance to kerosene, petrol, distillate and oils.