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GB/T 7408.1-2023 Chinese PDF (GB/T7408.1-2023) GB/T 27534.7-2025 English versions: GB/T 40425

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English versions: GB/T 40425

GB/T 24212-2025_Chinese: Methylnaphthalene oil (Chinese: 甲基萘油)

GB/T 23113-2023_Chinese: Sample preparation for measurement of mercury level in discharge lamp (Chinese: 放电灯含汞量检测的样品制备)

English versions: GB/T 18430

GB/T 7408.1-2023 Chinese PDF (GB/T7408.1-2023) GB/T 27534.7-2025 English versions: GB/T 40425GB T 7408. 1 2023_Chinese: Date and time Representations for information interchange Part 1: Basic rules (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 7408. 1 2023

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