Abstract

We determined the flamespread variability of four wood composite panel products that were being considered as possible standard reference material. We examined the effect of density, moisture content, heating rate, thermal conduc tivity, and specific heat on this variability. Of these, density has the greatest ef fect on variability. Of the four types of materials tested, material C had one of the smallest density variabilities. We recommend that this material be used in ASTM E 84 tests to establish its use as a standard reference material for flame spread tests, and that material selection and statistical design procedures outlined in this paper be followed.

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