GB/T 7990-2013
Vitreous and porcelain enamels.Determination of resistance to impact (English Version)

Standard No.

GB/T 7990-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

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

Status

Be replaced 2020-11

Replace By

GB/T 7991.4-2019

Latest

GB/T 7991.4-2019

Replace

GB/T 7990-2002

Scope

This standard specifies the test principle, test device, sample, test procedure, calculation formula and test report of the mechanical impact resistance of the glass-lined layer. This standard is a destructive test, and the glass-lined flat sample is used as the object of the mechanical shock resistance test.

GB/T 7990-2013 Referenced Document

• GB/T 308 Rolling bearings--Steel balls
• HG/T 3105 Vitreous and porcelain enamels for sheet steel-Production of specimens for testing

GB/T 7990-2013 history

• 2019 GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4：Determination of resistance to impact
• 2013 GB/T 7990-2013 Vitreous and porcelain enamels.Determination of resistance to impact
• 2002 GB/T 7990-2002 Impact test method of glass-lined layer

GB/T 7990-2013 Vitreous and porcelain enamels.Determination of resistance to impact was changed to GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4：Determination of resistance to impact.