Based on ASTM E136 test, fire -retardant-treated (FRT) wood is a

A) combustible material and hence it cannot be used in assemblies where the use of noncombustible materials is mandated.
B) combustible material but is allowed to be used in several assemblies where the use of noncombustible materials is mandated.
C) noncombustible material.
D) combustible/noncombustible material and hence it can be used in assemblies where the use of noncombustible materials is mandated.
E) none of the above.


B) combustible material but is allowed to be used in several assemblies where the use of noncombustible materials is mandated.

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