The NF A91-152-2016 standard specifies the ferric reagent test method for metal platings porosity, which is used to detect the presence of pores or discontinuities in metal overlays. This method is particularly suitable for engineering chromium overlays, involving the application of a solution of ferricyanide and chloride ions to the sample to observe whether a significant reaction occurs. By this method, the compactness and mass of platings can be evaluated, which is important for ensuring the protective performance and durability of metal platings.
| Status | Active |
|---|---|
| CCS | (A29) 材料防护 | ICS | (25.220.40) 金属镀层 |
| Release Date | 2016-06-18 00:00:00 | Implementation Date | 2016-06-18 00:00:00 |