中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 38744-2020
Methods for chemical analysis of synergistic catalysis elements in automotive exhaust catalysis-Determination of cerium, lanthanum, praseodymium, neodymium ,barium and zirconium contents-Inductively coupled plasma atomic emission spectrometry 机动车尾气净化器中助剂元素化学分析方法 铈、镧、镨、钕、钡、锆含量的测定 电感耦合等离子体原子发射光谱法
Issued Date:2020-04-28
Implemented Date:2021-03-01
Issued by:
The Standardization Administration of the People's Republic of China