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Impregnated fire retardant lumber

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Abstract
This standard describes typical uses for pressure-impregnated, fire-retardant lumber, referredto as fire-retardant lumber. It does not cover fire-retardant coatings over lumber. It also does not cover impregnated treatments for rot or insect contro.
Date
2/1979
Author(s)
Factory Mutual
Page(s)
Source
Factory Mutual Research
Keyword(s)
fire retardant lumber; FRT; FM

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