Home / Standards / GB/T 23943-2009 GB/T 23943-2009 Active Inorganic chemicals for industrial use - General method for the determination of chromium(Ⅵ) content - 1,5-diphenylcarbohydrazide spectrophotometric method 无机化工产品中六价铬含量测定的通用方法 二苯碳酰二肼分光光度法 Standard Type GBT ICS 71.060.01 CCS G10 Status 现行 Issue Date 2009-06-02 Implementation 2010-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A