Phenolic foam materials in blocks, boards and sheets not less than 0.5 in thick for building purposes and for thermal insulations up to temperatures of 130°C. Materials of apparent density 2 lb/ft3 and 3.5 lb/ft3.

BS 3927:1965
Original price was: $264.16.$132.00Current price is: $132.00.
Specification for phenolic foam materials for thermal insulation and building applications
BSI Group , 03/03/1967

