GB/T 8753.2-2005

Abolished

Anodizing of aluminium and aluminium alloys-Assessment of quality of sealed anodic oxide coatings Part 2:Phosphoric acid/chromic acid test with nitric acid predip

铝及铝合金阳极氧化氧化膜封孔质量的评定方法第2部分:硝酸预浸的磷铬酸法

Standard Type

GBT

ICS

25.220.20

CCS

H21

Status

Abolished

Issue Date

2005-07-04

Implementation

2005-12-01

Centralized Committee

中国有色金属工业协会

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the phosphoric acid/chromic acid test with nitric acid predip for assessing the quality of sealed anodic oxide coatings on aluminium and aluminium alloys. It is applied in manufacturing and quality control to evaluate the effectiveness of sealing treatments, particularly for components requiring corrosion resistance, such as architectural panels, automotive parts, and aerospace structures. The test is used to detect incomplete sealing or coating defects that could compromise long-term durability.

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 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 4956-2003 Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method 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.