Whenever provided for in this Act, except as specifically excepted in paragraph 4 of section 5 hereof, the word “platinum” may be applied by spelling it out in full or by the abbreviation “Plat.”; the word “iridium” may be applied by spelling it out in full or by the abbreviation “Irid.”; the word “palladium” may be applied by spelling it out in full or by the abbreviation “Pall.”; the word “ruthenium” may be applied by spelling it out in full or by the abbreviation “Ruth.”; the word “rhodium” may be applied by spelling it out in full or by the abbreviation “Rhod.”; and the word “osmium” may be applied by spelling it out in full or by the abbreviation “Osmi.”