GB 13690-2009 化学品分类和危险性公示 通则（中文版）
http://www.ehscity.com/file/upload/201403/06/GB13690-2009.pdf
General rule for classification and hazard communication of chemicals
http://www.ehscity.com/file/upload/201403/06/GB13690-2009en.pdf
2010-05-01
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