lexiara

preamble_4478

(a) Exposure of a specimen for a period of 30 minutes to a thermal environment which provides a heat flux at least equivalent to that of a hydrocarbon fuel/air fire in sufficiently quiescent ambient conditions to give a minimum average flame emissivity coefficient of 0,9 and an average temperature of at least 800 °C, fully engulfing the specimen, with a surface absorptivity coefficient of 0,8 or that value which the package may be demonstrated to possess if exposed to the fire specified, followed by;

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.