Occupational safety standards system. Respiratory protective devices. Filtering half masks against aerosols with additional protection against vapors and gases. General technical requirements. Test methods. Marking
Road vehicles. Components of the fuel system for supply of compressed gaseous hydrogen (CGH2) or hydrogen/natural gas mix. Part 9. Pressure relief valve
State system for ensuring the uniformity of measurements. Certified reference materials for metrological maintenance of pipeline non-destructive testing equipment. General requirements
Electronics automated design systems. Information support. Technical characteristics of electronic components. Photosensitive devices. Declarative knowledge specifications according to technical characteristics