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
Liquid petroleum products. Middle distillate fuels. Method for determination of ignition delay and derived certain number (DCN) by combustion in a constant volume chamber
Gas-fired instantaneous water heaters for the production of domestic hot water, fitted with atmospheric burners. General technical requirements and test methods
