GB/T 3260.1-2024 Chinese PDF (GB /T3260.1-2024)GB T 3260. 1 2024_Chinese: Methods for chemical analysis of tin Part 1: Determination of copper, lead, zinc, cadmium, silver, nickel and cobalt contents Flame atomic absorption spectroscopy (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 3260. 1 2024
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