GB/T 18779.2-2023 Chinese PDF (GB/T18779.2-2023) GB/T 45305.4-2025 1-2025_Chinese: Particle - Separation performance

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)

English versions: GB/T 44997-2024

1-2024_Chinese: Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis - Part 1: Determining the inclusion or second-phase constituent content of steels and other metals by automatic (Chinese: 应用自动图像分析测定钢和其他金属中金相组织、夹杂物含量和级别的标准试验方法 第1部分：钢和其他金属中夹杂物或第二相组织含量的图像分析与体视学测定)

English versions: GB/T 44884-2024

GB/T 18779.2-2023 Chinese PDF (GB/T18779.2-2023) GB/T 45305.4-2025 1-2025_Chinese: Particle - Separation performanceGB 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