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ABSTRACTS AND R E V I E W S 239 6 B u F T T N i - R , K "Effects of Extieme Heat on Man (Protection of Man against Conflagration Heat)," J American Medical Assoctalion 144 (9), 732-738 (1950) 7 SIMS, D L AND H I N K L R Y , P L "Protective Clothing against Flame and Heat," Fire Reseorcfe Special Report No 3 London, H M Stationeiy Office (1960) 8 "Building Standards (Scotland) Regulations Explanatory Memorandum Part 5 Means of Escape from Fire and Assistance to Fire Service," Scottish Development Department Edinburgh, H M Stationery Office (1964) Malhotra, H . L . (Fire Research Station, Boreham Wood, Herts, England) "Ex- panded Polystyrene Linings for Domestic Buildings," Fire Research Note No 12, Joint Fire Research Organization (1971) Sections: A, D Subjects: Polystyrene, Tiles, lining, Fire hazard, Building fires. Wall linings. Fire behavior Author's Conclusions An extensive investigation has been earned out to determine the fire hazard of expanded polystyrene ceiling tiles and wall limngs The experimental techmque and the results obtained have been ful ly described The mam interest of the work was the use of materials in domestic-type buildings and therefore the thicknesses selected and the methods of fixing investigated were those commonly recommended for such occupancies The results of this investigation may not be directly apphcable to other situations particularly if thicker materials are used A number of ad hoc testing techniques were evolved to examine the influence of the size of the igniting source Tests in full-size rooms were used to confirm the findings of the smaller tests The 'Fire propagation' test of B S 476 Part 6 was used to see i f its findings could be related to the behaviour pattern observed in the ad hoc tests (i) The fire behaviour of expanded polystyrene Iimngs is influenced by the method of attachment to the substrate and the presence of a decorative finish. (u) Expanded polystyrene tiles, to a maximum thickness of 12 5 mm attached to a Class " 0 " substrate, w i th an overall application of adhesive and wi th - out a surface finish, do not ignite easily and are unhkely to assist a fire to spread (i i i ) 'Dab' application of adhesive is undesirable as the tiles become dislodged and are likely to become ignited and lead to fire spread (iv) The presence of a surface fimsh facilitates the ignition of expanded poly- styrene The use of flame-retardant paints does not lead to any significant deterioration m performance Matt-finish emulsion pamt results in some deterioration, but the resultant performance is acceptable for domestic-type buildings
