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GB/T 223.53-1987 English PDF (GBT223.53-1987)

GB/T 223.53-1987 English PDF (GBT223.53-1987)

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GB/T 223.53-1987: Methods for chemical analysis of iron, steel and alloy. The flame atomic absorption spectrophotometric method for the determination of copper content
This standard applies to the determination of the amount of copper in cast iron, carbon steel, and low alloy steel. Measuring range is 0. 005% ~ 0. 50%. This standard follows the requirements GB 1467-78 Method for chemical analysis of metallurgy product - General rules and regulations.

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