GB/T 9799-2024 Translated English of Chinese Standard (GB/T 9799-2024, GBT9799-2024)


Book Description

This document specifies the requirements for treated zinc electroplated coatings on steel, including the information to be provided by the purchaser to the supplier and the requirements for heat treatment before and after electroplating. This document does not specify the surface condition of the base metal before zinc electroplating, but defects on the base metal surface will have an adverse effect on the appearance and performance of the coating. This document applies to treated zinc electroplated coatings on iron or steel. This document does not apply to: -- zinc electroplated coatings on unformed steel sheets, strips and wires; -- zinc electroplated coatings for tightly wound springs; -- zinc electroplated coatings for non-protective decorative purposes. The thickness of the electroplating coating on threaded parts can be limited by thread grade or assembly size requirements.




GB/T 11376-2020 Translated English of Chinese Standard (GB/T 11376-2020, GBT11376-2020)


Book Description

This Standard specifies methods for determining the requirements for phosphate conversion coating. This Standard applies to ferrous materials, aluminum, zinc, cadmium and their alloys (see Appendix A).




GB/T 43101-2023 Translated English of Chinese Standard (GB/T 43101-2023, GBT43101-2023)


Book Description

This document defines porosity and its related terms and describes the principle of porosity test of metallic and other inorganic coatings. This document provides the purpose of porosity test to help users choose the most suitable test method for their products and applications. This document is applicable to the test of discontinuities, such as: cracks, micropores, pores or pits that extend from the surface of the coating to the underlying layer or substrate. This document is not applicable to corrosion performance evaluation.













Testing of Metallic and Inorganic Coatings


Book Description

Coatings are tested to confirm compliance with specifications, to monitor the operation of a coating process, and to evaluate coatings for various services. The ability of a coating to perform as intended usually depends on several characteristics, and the testing of a coating usually involves several different tests. At first glance the nature of a characteristic that is being tested may seem clear and the results of a test may seem to be unambiguous, however, the nature of a characteristic my be more complex than realized and the ability of a test to measure the characteristic may be less than expected. The members of the ASTM Committee B-8 on Metallic and Inorganic Coatings felt it was desirable to organize a symposium on the testing of the metallic and inorganic coatings so as to bring these problems to the attention of practitioners. This publication is based on the symposium, which was presented in Chicago on April 14 and 15, 1986.










Annual Book of ASTM Standards


Book Description

Index to ASTM standards issued as last part of each vol.