BS 4978(1996) : 1996被替代
SPECIFICATION FOR VISUAL STRENGTH GRADING OF SOFTWOOD
出版：British Standards Institution
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基本信息
标准编号： BS 4978(1996) : 1996
发布时间：1996/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：18
标准简介
Details a method of strength grading (either in United Kingdom or abroad) softwood visually for structural use, specifying the permissible limits of characteristics for two visual strength grades of softwood, General Structural Grade (GS) and Special Structural Grade (SS). If softwood is graded abroad under supervision of a certification body approved by UK Timber Grading Committee, and graded and marked in accordance with this British Standard, it is acceptable in the United Kingdom, provided it is not resawn into smaller sizes.
替代本标准的新标准
