GB/T 17720-1999
AbolishedMetallic coatings--Review of porosity tests
金属覆盖层 孔隙率试验评述
Application Summary AI generated
This standard provides a comprehensive review of porosity testing methods for metallic coatings, detailing the principles, procedures, and limitations of various test techniques. It is applied in manufacturing and quality control contexts to evaluate the porosity of electroplated, anodized, or other metallic coatings on metal substrates, particularly for components requiring corrosion resistance or electrical conductivity. The standard serves as a reference for engineers and inspectors selecting appropriate porosity tests for products like automotive parts, electronic connectors, and aerospace hardware.
Related Standards
GB/T 19356-2003
Thermal spraying--Powders--Composition and technical supply conditions
GB/T 9792-2003
Conversion coatings on metallic materials--Determination of coating mass per unit area--Gravimetric methods
GB/T 4956-2003
Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method
GB/T 9791-2003
Chromate conversion coatings on zinc，cadmium，aluminium-zinc alloys and zinc-aluminium alloys--Test methods
GB/T 19353-2003
Vitreous and porcelain enamels--Corrosion tests in closed systems
GB/T 4957-2003
Non-conductive coatings on non-magnetic basis metals--Measurement of coating thickness--Eddy current
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 19355-2003
Protection against corrosion ofiron and steel in structures--Zinc and aluminum coatings--Guidelines
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.