This document summarizes GOST R 55558-2013, a Russian standard for determining the content of platinum, palladium, rhodium, ruthenium, iridium, and gold in sulfide copper-nickel ore using mass spectrometry after preliminary collection on nickel matte. It provides contact information for Russiangost.com to request a copy of the standard in various languages and formats. The website offers for sale Russian regulations, norms, codes, and laws translated into English across various industries.