GB 44019-2024 Chinese PDF GB/T 45359.2-2025 English versions: GB/T 45310-2025

English versions: GB/T 45310-2025

GB/T 45647-2025_Chinese: Technical specification for carbon dioxide recovery and disposal in metallurgical lime kiln (Chinese: 冶金石灰窑中二氧化碳回收处置技术规范)

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)

English versions: GB/T 45216-2025

GB/T 19973

GB 44019-2024 Chinese PDF GB/T 45359.2-2025 English versions: GB/T 45310-2025GB 44019 2024_Chinese: Safety requirements for tank cleaning washing operation of chemical tankers (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 44019 2024