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GB/T 45373-2025_Chinese: Petroleum and liquid petroleum products - Direct measurement of density in tanks - Resonance cylinder densitometer methods (Chinese: 石油和液体石油产品 罐内密度直接测量 谐振筒密度计法)
phenolphthalein alkalinity
GB/T 44883-2024_Chinese: Energy efficiency control system in process production - Design requirements (Chinese: 流程生产能效管控系统 设计要求)
GB/T 11617-2025_Chinese: Lexicography - Basic terminology，common symbols and Chinese abbreviations (Chinese: 辞书编纂 基本术语、常用符号和汉语缩略语)
GB/T 45097
GB/T 45648.1-2025 Chinese PDF (GB /T45648.1-2025) GB/T 45087-2024 GB/T 45373-2025_Chinese: Petroleum and liquidGB T 45648. 1 2025_Chinese: Technical specification of energy absorption device for high voltage direct current(HVDC) power transmission Part 1: DC controllable and self recovery energy absorption device (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45648. 1 2025
