GB 5009.305-2025 Chinese PDF GB 5009.42-2025 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)

1-2025_Chinese: Plastics - Determination of tensile properties - Part 1: General principles (Chinese: 塑料 拉伸性能的测定 第1部分：总则)

GB 45189-2025_Chinese: Specification for cyanide safety production management (Chinese: 氰化物安全生产管理规范)

English versions: GB/T 14601-2025

English versions: GB/T 13963-2025

GB 5009.305-2025 Chinese PDF GB 5009.42-2025 20-2024_Chinese: Chemical analysis methods forGB 5009. 305 2025_Chinese: National food safety standard Determination of bisphenol A, bisphenol F and bisphenol S in foods (Chinese: AFS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 5009. 305 2025