Standard NBN EN ISO 9455-15:2017
Soft soldering fluxes - Test methods - Part 15: Copper corrosion test (ISO 9455-15:2017)
25.160.50 Brazing and soldering
ISO 9455-15:2017 specifies a qualitative method for determination of the corrosive properties of flux residues on a copper substrate when subjected to controlled environmental conditions. The test is applicable to type 1 fluxes, as defined in ISO 9454‑1.