The standard applies to fire retardant agents that must be applied to or in wood, including any protective or finis ing layer to be applied in combination with the agent. Where wood is mentioned in this standard, this also includes sheet materials manufactured on the basis of wood or other ligno-cellulose-containing materials, such as plywood, plywood, furniture board, chipboard, softboard and hardboard.
NEN 3254-1969 history
1969NEN 3254-1969 Fire-retardants for wood. Methods of testing