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GBZ45378-2025_Chinese: Non-destructive testing - Methods for absolute calibration of acoustic emission transducers by the reciprocity technique (Chinese: 无损检测 基于互易性技术的声发射传感器绝对校准方法)
English versions: GB/T 45178-2024
GB/T 43259
English versions: GB/T 29820
1-2025_Chinese: Particle - Separation performance test for particle size separator - Part 1: General principles (Chinese: 颗粒 粒度切割器切割性能测试 第1部分：通则)
GB/T 18779.2-2023 Chinese PDF (GB/T18779.2-2023) GB/T 45305.4-2025 GBZ45378-2025_Chinese: Non-destructive testing - MethodsGB T 18779. 2 2023_Chinese: Geometrical product specifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 2: Guidance for the estimation of uncertainty in GPS measurement, in calibration of measuring equipment and in product verification (Chinese: (GPS) 2GPS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18779. 2 2023
