The article deals with the results of 39^th ISO/REMCO Committee on reference materials meeting (14-16 June 2016, Ekaterinburg, Russian Federation). The meeting was moderated by Federal Agency on Technical Regulating and Metrology (Rosstandart) and Ural Research Institute for Metrology (UNIIM). 37 representatives from 19 countries took part in the meeting (Australia, Belgium, Brazil, Great Britain, Germany, Israel, Kazakhstan, Canada, China, Korea, Netherlands, Russia, USA, Ukraine, France, Czech Republic, Switzerland, Republic of South Africa, Japan) including representatives of national authorities on metrology and national institutes for metrology which cooperate with ISO/REMCO organizations (EDQM, ILAC, CITAC, OIML, UILI) and other ISO technical committees. The meeting dealt with the following issues: final version development of ISO 17034 "General requirements for the competence of reference material producers" (instead of ISO Guide 34-2009) (ISO/CASCO/JWG 43); final version development of ISO Guide 35 "Reference materials - Guidance for characterization and assessment of homogeneity and stability" (instead of ISO Guide 35:2006) (WG 16); particularities of the characterization of pure materials (AHG4); recent advancements in the assessment of homogeneity and stability for reference materials (AHG5); development of the technical report for development of nominal properties reference materials; informational support of ISO/REMCO activities. Finally the resolutions were adopted to accomplish till the next ISO/REMCO meeting

The article deals with information of development of a draft of Agreement for development and use of reference materials of composition and properties of substances and materials which was developed within Interstate Council for Standardization, Metrology and Certification

Emergence of requirements in the certified reference materials (CRMs) to perform chemical analysis of natural and man-made environments (geoanalysis); and formation of requirements to accuracy of results and quality management systems analysis are shown in the historical aspect. Creation of the multi-parameter CRMs of composition, size and quantity of mineral phases for geoanalysis are presented as new outlook.

The article deals with data of research for development of certified reference materials set for opened porosity of solid substances and materials (imitators) (OPTB SO UNIIM Set) Certified Reference Materials GSO 10583-2015. The certified values of opened porosity of metal cylinders were established by the method of hydrostatic weighing before and after boring of holes in. The certified reference materials are intended for calibration and verification of measuring instruments of opened porosity, based on the Boyle - Mariotte's law.

The results of developing of reference installation, based on a controlled-potential coulometry, in the frame of improving the State primary standard of the units of mass (molar) fraction and mass (molar) concentration of a component in the liquid and solid substances and materials GET 176 are presented. The physical principles of controlled-potential coulometry, content and metrological characteristics of the developed installation are considered. Measurement results of copper, iron and lead contents in the certified reference materials of metals' solutions and CRM of brass produced by BAM, Germany, obtained using reference installation are given.

In this article the analysis of metrological assurance of control technologies integrity subject to the rules of safety at hazardous production facilities. Deals with the scientific and methodological aspects of the evaluation of threshold sensitivity of control systems integrity using controlled leaks, containing in its composition of standard samples for reproduction of units of volumetric and mass flow of gas, which expands the scope of their applicability.