§23.7. Disclosure of surface-layer application of rhodium. — Inbound Citations

(3) An industry product consisting of 850 parts per thousand pure Platinum, 900 parts per thousand pure Platinum, or 950 parts per thousand pure Platinum may be marked “Platinum,” provided that the Platinum marking is preceded by a number indicating the amount in parts per thousand of pure Platinum (for industry products consisting of 950 parts per thousand pure Platinum, the marking described in § 23.7(b)(2) above is also appropriate). Thus, the following markings may be used: “950Pt.,” “950Plat.,” “900Pt.,” “900Plat.,” “850Pt.,” or “850Plat.”