Lisienko D. G., Dombrovskaya M. A., and Kubrina E. D. Sinthesis features of a set of six samples of the reference material of the new type of graphite collector of microimpurities SOG-30 are discussed. The results of analysis of the matix composition (high purity graphite HP-8-4), degree of unhomogenity, stability, and mutual consistency of the samples are presented. The results of testing SOG-30 carried out in Federal State Unitary Enterprise “UNIIM” using state secondary standard GUAT 196-1-2012 by the method of mass spectrometry with inductively coupled plasma (mass-spectrometer NexION-300D) are presented.