GB/T 27612.1-2023 Chinese PDF (GB/T27612.1-2023) GB/T 18978.210-2024 20-2024_Chinese: Chemical analysis methods for

20-2024_Chinese: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides - Ion chromatography method (Chinese: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)

4-2024_Chinese: Ships and marine technology - Protective coatings and inspection method - Part 4: Automated measuring method for the total amount of water-soluble salts (Chinese: 船舶与海上技术 保护涂层和检查方法 第4部分：水溶性盐总含量的自动化测量方法)

English versions: GB/T 4698

English versions: GB/T 28545-2023

English versions: GB/T 24045-2024

GB/T 27612.1-2023 Chinese PDF (GB/T27612.1-2023) GB/T 18978.210-2024 20-2024_Chinese: Chemical analysis methods forGB T 27612. 1 2023_Chinese: Agricultural irrigation equipment Sprinklers Part 1: Definition of terms and classification (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 27612. 1 2023