Home / Standards / GB/T 17666-1999 GB/T 17666-1999 Active Quick test method for determination of tannin in wattle bark extracts 黑荆树栲胶单宁快速测定方法 Standard Type GBT ICS 79.020 CCS B72 Status 现行 Issue Date 1999-01-25 Implementation 1999-08-01 Responsible Dept 国家林草局 Drafting Unit N/A