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1-2024_Chinese: Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1:GEneral principles (Chinese: 塑料 使用毛细管黏度计测定聚合物稀溶液黏度 第1部分：通则)
English versions: GB 45186-2024
GB/T 19183
English versions: GB/T 16254-2024
English versions: GB/T 21666-2025
GB/T 20931.12-2025 Chinese PDF (GB /T20931.12-2025) GB/T 22330.6-2024 1-2024_Chinese: Plastics - Determination ofGB T 20931. 12 2025_Chinese: Methods for chemical analysis of lithium Part 12: Determination of impurity element contents Inductively coupled plasma atomic emission spectrometry (Chinese: 12 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20931. 12 2025
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