Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for small movable sources in reverberant fields. Part 1. Comparison method for a hard-wall test room
Solid-state laser and solid-state laser heads on an aluminumtrium garnet pulse mode with Q-factor modulation. Method for measurement of one pulse energy
State system for ensuring the uniformity of measurements. State verification schedule for means of electromagnetic field density measurements within frequency range from 0,3 to 178,4 GHz
