Gas-fired air heaters with forced convection for firing (heating) rooms not exceeding a net heat input of 100 kW. General technical requirements and test methods
Electromagnetic compatibility of technical equipment for intruder, fire and intruder-fire alarm systems. Requirements, limits and testing techniques for immunity and emission
State system for ensuring the uniformity of measurements. State hierarchy scheme for means measuring magnetic flux density, magnetic flux, magnetic moment and gradient of magnetic flux density
