NFPA 220 建筑物分类标准
日期:2012-02-10 14:18
NFPA 220 Standard on Types of Building Construction
NFPA 220 建筑物分类标准
1.1* Scope. This standard defines types of building construction based on the combustibility and the fire resistance rating of a buildings structural elements. Fire walls, nonbearing exterior walls, nonbearing interior partitions, fire barrier walls, shaft enclosures, and openings in walls, partitions, floors, and roofs are not related to the types of building construction and are regulated by other standards and codes,
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