Acoustics. Recommended practice for the design of low-noise workplaces containing machinery. Part 3. Sound propagation and noise prediction in workrooms
Oscillator, modulator and regulation tubes with anode dissipated power above 25 W. Measurement methods of currents of anode and grids, having positive voltage relative to cathode and zero anode and grids currents
Methods for studying the effects of chemicals on the human body. Bovine corneal opacity and permeability test method for identifying chemicals inducing serious eye damage and chemicals not requiring hazard classification for eye irritation or serious eye damage
