Laboratory participation in the inter-laboratory comparisons is one of the requirements of the GOST ISO/IEC 17025:2005-2009 international standard for quality assurance of the test results.
EZOCM JSC has been accredited as a proficiency testing provider of laboratory qualification validations for compliance with the ISO 17043:2010. The list of proficiency test items includes refined precious metals; alloys based on precious metals; secondary waste, mineral raw materials containing precious metals; solutions containing precious metal ions. Samples are tested for mass fraction (mass concentrations) of elements.
Proficiency testing (PT) programs realized by EZOCM in 2023
PT index | Test item | Matrix | Ranges of element mass fraction | Test material form and mass | Deadline for participation application |
OCM-36-2023 | Alloyed gold | Au-Ag and non-precious metals | Au – (72‑82) %; | Rolled plates (thickness 0.2‑0.3 mm); mass 3 g* | April 1st, 2023 |
OCM-37-2023 | Technological waste containing precious metals | Al (~ 24 %); | Au – (0.01-0.10) %; | Powder (particle size less than 200 μm); mass 20 g* | April 1st, 2023 |
OCM-38-2023 | Electronic scrap | Cu | Au – (0.05-0.50) %; | Chips (thickness about 0.5 mm); mass 10 g* | April 1st, 2023 |
OCM-39-2023 | Iridium | Ir | Ag, Al, Bi, Ba, Fe,Au, Cd, Co, Si, Mg, Cu, As, Ni, Sn, Os, Pd, Pt, Rh, Ru, Pb, Ti, Cr, Zn – content of each impurity < 0.007 % ** | Powder; mass 1 g* | April 1st, 2023 |
OCM-40-2023 | Palladium scrap | Pd-Pt-Rh | Pd – (65-81) %; | Rolled plates (thickness 0.2‑0.3 mm); mass 5 g* | June 1st, 2023 |
OCM-41-2023 | Alloyed gold (Dore) | Au, Ag | Au – (25-40) %; | Rolled plates (thickness 0.2 mm); mass 3 g* | July 1st, 2023 |
* or more on the request.
** Since March 9th , 2023
Additional information:
For the OCM-39-2023 the minimum sample mass for analysis is 0.3 g.
Laboratories may participate in proficiency testing regardless of their legal form and accreditation status. The participant chooses the measurement technique at his own discretion, taking into account the information presented in the PT program. The PT test item must be treated proficiency test items in the same manner as the majority of routinely tested.
The participant can provide measurement results obtained by different methods or operators at no additional charge for assessing of the proficiency evaluation. The proficiency testing is carried out after receiving at least two applications for participation.
For more information, please contact us:
Elena Anchutina, PT Programs Coordinator:
Phone: +7 (343) 311-47-21, e-mail: e.anchutina@ezocm.ru
Milana Mustafina, Lead specialist of International Trade Department:
Phone: +7 (343) 311-46-29, e-mail: overseas@ezocm.ru
To establish a long term plan of proficiency testing, please fill in the questionnaire, which includes a list of items and test characteristics to organize proficiency testing programs in which your lab would like to take part and return it to us via e-mail: m.lisienko@ezocm.ru or by letter to the following postal address:
attn: Maria Lisienko, Head of Central Analytical Laboratory, EZOCM JSC, 131 Uspensky Prospect, Verkhnyaya Pyshma, Sverdlovsk Region, 624097, Russia.