GB/T 2972-1991
AbolishedZinc-coated steel wire--Test method for uniformity of zinc coating on wire by the copper sulphate dip
镀锌钢丝锌层硫酸铜试验方法
Application Summary AI generated
This standard specifies the copper sulfate dip test method for evaluating the uniformity of the zinc coating on galvanized steel wire. It is applied in the manufacturing and quality control of zinc-coated steel wire products, such as those used in fencing, cables, and springs, to detect discontinuities or insufficient coating thickness. The test is conducted by repeatedly immersing wire samples in a copper sulfate solution and observing the appearance of copper deposits, indicating exposed steel.
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