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YB/T 4680-2018 PDF English

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YB/T 4680-2018: Corrosion of metals and alloys. Evaluation of chromium-free passivation on the galvanized sheet
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YB/T 4680-2018English229 Add to Cart 3 days [Need to translate] Corrosion of metals and alloys. Evaluation of chromium-free passivation on the galvanized sheet

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Basic data

Standard ID YB/T 4680-2018 (YB/T4680-2018)
Description (Translated English) Corrosion of metals and alloys. Evaluation of chromium-free passivation on the galvanized sheet
Sector / Industry Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H25
Classification of International Standard 77.060
Word Count Estimation 10,156
Date of Issue 2018-10-22
Date of Implementation 2019-04-01
Regulation (derived from) Ministry of Industry and Information Technology Announcement No.54 of 2018
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the test equipment, test materials, sample preparation, test procedures, test results and test reports for the evaluation of the hexavalent chromium passivation solution and the passivation film formed on the surface of the galvanized sheet. This standard is applicable to the determination and evaluation of the properties of hexavalent chromium passivation solution and surface passivation film for galvanized sheet. This standard does not apply to the determination and evaluation of the performance of silicon steel chromium-free passivation film.

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