Platinum

Platinum is a metal with a white-gray color similar to steel, practically insoluble in water and acids, except for hot aqua regia, with which it reacts to form platinum hydrochloric acid. The density of platinum is 21.45; the melting point is 1773.5 degrees Celsius; hardness according to Mohs scale is 5. Platinum is malleable, easily polished, has high reflective ability, and has low thermal and electrical conductivity, as well as low specific heat capacity.

Source: of the Russian Customs Authority dated 20.01.1999 No. 01-15/1361

"ON THE ISSUANCE OF INSTRUCTIONS AND METHODOLOGICAL RECOMMENDATIONS"

(together with "INSTRUCTION ON THE ORDER OF TRANSFER, ACCEPTANCE, ACCOUNTING, STORAGE AND SUBMISSION FOR EXPERTISE OF ITEMS ARRIVING AT CUSTOMS LABORATORIES AND CONTAINING PRECIOUS METALS AND PRECIOUS STONES", approved by the Russian Customs Authority on 11.01.1999 No. 01-23/1359, "METHODOLOGICAL RECOMMENDATIONS ON THE ORDER OF CONDUCTING AN INSPECTION OF JEWELRY ITEMS CONTAINING PRECIOUS METALS AND STONES WITH PARTICIPATION OF A SPECIALIST AND REFLECTING THE RESULTS IN THE PROTOCOL", approved by the Russian Customs Authority on 11.01.1999 No. 01-23/1360)

Платина

Codes and federal laws