GB/T 2972-1991
Zinc-coated steel wire.Test method for uniformity of zinc coating on wire by the copper sulphate dip (English Version)

Standard No.

GB/T 2972-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2017-05

Replace By

GB/T 2972-2016

Latest

GB/T 2972-2016

Replace

GB 2972-1982

Scope

This standard specifies the principle of the copper sulfate test method for the zinc layer of galvanized steel wire, the sample, the test solution, the test conditions and procedures, the judgment of the end point and the judgment of whether it is qualified or not. This standard applies to hot-dip galvanized steel wire, and electro-galvanized steel wire can also refer to this standard.

GB/T 2972-1991 history

• 2016 GB/T 2972-2016 Test method for uniformity of zinc coating on zinc-coated steel wire by the copper sulphate dip
• 1991 GB/T 2972-1991 Zinc-coated steel wire.Test method for uniformity of zinc coating on wire by the copper sulphate dip
• 0000 GB 2972-1982