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Toolmaker`s microscopes. Types, main parameters and dimensions. Technical requirements

Document status: Active

Gas discharge devices. Methods of measurement of electrical parameters of operating and measuring conditions for pulsed thyratrons and gasotrones

Document status: Active

Microphones. Methods of measuring electroacoustic parameters

Document status: Withdrawn

Cathode-ray tubes for reception. Supply and driving voltages standards

Document status: Active

Information technology. Computing information systems. Computer-based equipment for school. Quality characteristics. Technical requirements

Document status: Active

Image intensifier and image converter tubes. Method of checking useful diameter of the photocathode

Document status: Active