State system for ensuring the uniformity of measurements. Standard reference data. Silicide of vanadium. The lattice parameters in the concentration range from 20 at.% to 25 at.% of silicon. Coefficient of linear thermal expansion in the range from 20 K up to 300 K
Broadcasting transmitters, fixed AM modulated, ranges of low frequency, mean frequency and high frequency. Main parameters, technical requirements and methods of measurement
Occupational safety standards system. Individual protective devices for legs. Special footwear for protection against hand-held chain saw cutting. Technical requirements
