Electroanalysis the regulation that the chemical composition of nickel should accord with watch
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Nickel and cobaltic gross are not less than 99.99 99.96 99.9 99.5 99.2 cobalt to be more than 0.005 0.02 0.08 0.15 0.50 is miscellaneousQualitative
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Quantity
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C 0.005 0.01 0.01 0.02 0.10 Si 0.001 0.002 0.002 - - P 0.001 0.001 0.001 0.003 0.02 S 0.001 0.001 0.001 0.003 0.02 Fe 0.002 0.01 0.02 0.20 0.50 Cu 0.0015 0.01 0.02 0.04 0On one page12 below one page