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GB 43630-2023_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for tower and rack servers (Chinese: 塔式和机架式服务器能效限定值及能效等级)
GB/T 45443-2025_Chinese: Determination of melatonin in health foods (Chinese: 保健食品中褪黑素的测定)
English versions: GB/T 18655-2025
English versions: GB/T 20064
phenolphthalein alkalinity
GB/T 28892-2024 Chinese PDF (GB/T28892-2024) GB/T 45282-2025 GB 43630-2023_Chinese: Minimum allowable valuesGB T 28892 2024_Chinese: Surface chemical analysis X ray photoelectron spectroscopy Description of selected instrumental performance parameters (Chinese: X ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28892 2024
