Abbreviations. Whenever provided for in this article, and except as specifically excepted in paragraph (d) of Section 22128:

1. (a) The word “platinum” may be applied by spelling it out in full or by the abbreviation “plat.”
2. (b) The word “iridium” may be applied by spelling it out in full or by the abbreviation “irid.”
3. (c) The word “palladium” may be applied by spelling it out in full or by the abbreviation “pall.”
4. (d) The word “ruthenium” may be applied by spelling it out in full or by the abbreviation “ruth.”
5. (e) The word “rhodium” may be applied by spelling it out in full or by the abbreviation “rhod.” and
6. (f) The word “osmium” may be applied by spelling it out in full or by the abbreviation “osmi.”.