Home / Standards / GB 8771-2007 GB 8771-2007 Active Maximum limits for soluble elements content of pencil coating 铅笔涂层中可溶性元素最大限量 Standard Type GB ICS 13.100 CCS C56 Status 现行 Issue Date 2007-06-26 Implementation 2008-01-01 Responsible Dept 国家疾控局 Drafting Unit 国家疾控局