scope:

General

Rhodium plating is used primarily in electrical and electronic equipment where its resistance to tarnishing permits the maintenance of low contact resistance and its resistance to wear provides long life for sliding contacts, particularly if these are free from arcing and sparking. The high reflectivity in the visible and infra-red ranges and the resistance to tarnishing of polished rhodium make rhodium plating particularly suitable for reflectors.

Mercury or mercury compounds shall not be present in any of the materials used at any stage of the process (see Appendix VI). Care should be taken to avoid accidental contamination of the materials with mercury