Platinum PLA-1 (PL 999,5)
Designation
Description
Platinum PLA-1 is used: for the manufacture of ingots and powder, applied in the smelting of alloys, the manufacture of chemicals, chemical compounds of platinum and other purposes; measuring ingots of platinum weighing from 5 to 500 g intended for commercial purposes.
Note
Affilirovannaja platinum.
Platinum powder is labeled Plap-1.
Standards
Chemical composition
According to GOST 31290-2005 the chemical composition is given for PlA-1 platinum (in ingots) and PLAp-1 (in powder), the total content of all impurities is ≤ 0.050%. In agreement with the consumer, the number of detectable elements (impurities) can be expanded and their maximum permissible mass fractions determined, as well as the determination of losses during ignition for platinum in powder according to the methods of the manufacturer.