Abstract
IN response to a demand for materials and treatments of comparatively low cost which would afford a useful degree of protection against incendiary bombs, though not necessarily as high as that required of the incombustible material conforming to specification BS/ARP No. 27, the British Standards Institution has issued a new specification designated BS/ABP No. 47. This deals with the testing of incombustible material providing a minimum standard of protection against incendiary bombs. The specification fixes a standard of protection such that materials conforming therewith will (a) markedly reduce the lateral spread of fire on protected surfaces; (b) markedly retard or even prevent entirely the outbreak of a destructive fire; and (c) markedly reduce the damage to protected timber floors, usually confining it to the slow burning and charring of a square foot or so of boarding. It is emphasized that the adoption of protection to the standard fixed by the specification does not obviate the necessity fpr active defence against bombs by the stirrup hand-pump or other fire-fighting appliance. By retarding the effects of the bomb, the time during which it or the resultant fire may be effectively dealt with is appreciably increased. Copies of the specification are obtainable from the Publications Department of the British Standards Institution, 28 Victoria Street, London, S.W.I.
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A Standard of Protection against Incendiary Bombs. Nature 146, 454 (1940). https://doi.org/10.1038/146454a0
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DOI: https://doi.org/10.1038/146454a0