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English versions: GB/T 29847-2025
1-2025_Chinese: Cards and security devices for personal identification - Test methods - Part 1: General characteristics (Chinese: 卡及身份识别安全设备 测试方法 第1部分：一般特性)
GB 21342-2025_Chinese: Norm of energy consumption per unit production of coke (Chinese: 焦炭单位产品能源消耗限额)
5-2025_Chinese: Quality requirements for starch sugar - Part 5: Maltose (Chinese: 淀粉糖质量要求 第5部分：麦芽糖)
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)
GB/T 31379.1-2025 Chinese PDF (GB /T31379.1-2025) GB/T 17925-2024 English versions: GB/T 29847-2025GB T 31379. 1 2025_Chinese: Test methods for polarizers of flat panel displays Part 1: Physical and chemical properties (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 31379. 1 2025
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