GB/T 21270-2025 Chinese PDF (GB /T21270-2025) GB/T 20972.3-2025 24-2025_Chinese: Methods for chemical analysis

24-2025_Chinese: Methods for chemical analysis of magnesium and magnesium alloys - Part 24: Determination of trace impurity elements contents - Glow discharge mass spectrometry (Chinese: 镁及镁合金化学分析方法 第24部分：痕量杂质元素的测定 辉光放电质谱法)

3-2025_Chinese: Norm of water intake for industry in the Yellow River basin - Part 3: Coal to olefin (Chinese: 黄河流域工业用水定额 第3部分：煤制烯烃)

2-2025_Chinese: Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 2: The close-proximity method (Chinese: 声学 道路表面对交通噪声影响的测量 第2部分：近距法)

3-2025_Chinese: Quality requirements for baijiu - Part 3: Mixiangxing baijiu (Chinese: 白酒质量要求 第3部分：米香型白酒)

GB/T 25246-2025_Chinese: Technical specification for land application of livestock and poultry manure fertlizer (Chinese: 畜禽粪肥还田技术规范)

GB/T 21270-2025 Chinese PDF (GB /T21270-2025) GB/T 20972.3-2025 24-2025_Chinese: Methods for chemical analysisGB T 21270 2025_Chinese: General quality for food filling (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21270 2025