YB/T 4680-2018 English PDF

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YB/T 4680-2018: Corrosion of metals and alloys. Evaluation of chromium-free passivation on the galvanized sheet
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YB/T 4680-2018	229	Add to Cart	3 days	Corrosion of metals and alloys. Evaluation of chromium-free passivation on the galvanized sheet	Valid

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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: 10,123
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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