GB/T 7990-2013
AbolishedVitreous and porcelain enamels―Determination of resistance to impact
搪玻璃层耐机械冲击试验方法
Application Summary AI generated
This standard specifies a test method for determining the impact resistance of vitreous and porcelain enamel coatings applied to metal substrates. It is primarily used in the manufacturing and quality control of chemical processing equipment, such as glass-lined steel reactors and storage tanks, where the enamel layer must withstand mechanical shocks during operation. The test involves dropping a steel ball of specified mass from a defined height onto the coated surface to evaluate the coating's ability to resist chipping or cracking.
Related Standards
GB/T 9792-2003
Conversion coatings on metallic materials--Determination of coating mass per unit area--Gravimetric methods
GB/T 19356-2003
Thermal spraying--Powders--Composition and technical supply conditions
GB/T 19355-2003
Protection against corrosion ofiron and steel in structures--Zinc and aluminum coatings--Guidelines
GB/T 19353-2003
Vitreous and porcelain enamels--Corrosion tests in closed systems
GB/T 19354-2003
Vitreous and porcelain enamels for aluminium--Determination of the adhesion of enamels on aluminium under the action of electrolytic solution (spall test)
GB/T 4957-2003
Non-conductive coatings on non-magnetic basis metals--Measurement of coating thickness--Eddy current
GB/T 9791-2003
Chromate conversion coatings on zinc，cadmium，aluminium-zinc alloys and zinc-aluminium alloys--Test methods
GB/T 4956-2003
Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.