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3-2023_Chinese: Express service - Part 3: Service procedures (Chinese: 快递服务 第3部分：服务环节)
2-2024_Chinese: Assessment of uncertainty in the calibration and use of flow measurement devices - Part 2: Non-linear calibration relationships (Chinese: 流量测量装置校准和使用不确定度的评估 第2部分：非线性校准关系)
GB/T 1558-2023_Chinese: Test method for substitutional carbon content in silicon by infrared absorption (Chinese: 硅中代位碳含量的红外吸收测试方法)
English versions: GB/T 14020-2024
English versions: GB/T 18916
GB/T 26991-2023 Chinese PDF (GB/T26991-2023) GB 21456-2024 3-2023_Chinese: Express service - PartGB T 26991 2023_Chinese: Test methods for power performance of fuel cell electric vehicles (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 26991 2023
