中華人民共和國國家標準
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 12009.4-2016
(Plastics - Aromatic isocyanates for the production of polyurethane - Part 4: Determination of isocyanate content - amendment No. 1) 塑料 聚氨酯生産用芳香族異氰酸酯 第4部分:異氰酸根含量的測定《第1号修改單》
Issued Date:2016
Implemented Date:2016
Issued by:
The Standardization Administration of the People's Republic of China