The standard specifies the technical requirements and test methods for phosphoric acid conversion coatings on metal surfaces. The standard covers the types, performance indicators and Applications of phosphoric acid conversion coatings, which are suitable for pretreatment and protection of steel and non-ferrous metal surfaces. The standard provides a scientific basis for improving the corrosion resistance and painting adhesion of metal surfaces, and is an important reference for the production and application of phosphoric acid conversion coatings in related industrial fields.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Abolish | ||
|---|---|---|---|
| CCS | A29 | ICS | 25.220.40 |
| Release Date | 1997-07-25 00:00:00 | Implementation Date | 1998-02-01 00:00:00 |
