GB/T 5019.5-2023 Chinese PDF (GB/T5019.5-2023) GB/T 31461-2024 English versions: GB/T 19799

English versions: GB/T 19799

English versions: GB/T 45016-2024

English versions: GB 12358-2024

GB/T 3392-2023_Chinese: Determination of hydrocarbon impurities of propylene for industrial use - Gas chromatographic method (Chinese: 工业用丙烯中烃类杂质的测定 气相色谱法)

GB/T 45124-2024_Chinese: Measurement of liquid flow in closed conduits - Volumetric method (Chinese: 封闭管道中液体流量的测量 容积法)

GB/T 5019.5-2023 Chinese PDF (GB/T5019.5-2023) GB/T 31461-2024 English versions: GB/T 19799GB T 5019. 5 2023_Chinese: Insulating materials based on mica Part 5: Rigid mica materials for heating equipment (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5019. 5 2023