GOST 28394-89

Gas distribution systems. Design, construction and liquidation of natural gas distribution networks. Part 2. Steel gas pipelines

Railway applications. Welding of railway vehicles and components. Part 3. Design requirements

Low-power electronic tubes and valves. Methods of measurement of current due to the cathode electron emission

Air transport. System of aircraft maintenance and repair. Information analysis system for aircraft airworthiness monitoring. The 'Supervision' user module. General requirements

Identification cards. Optical memory cards. Linear recording method. Part 2. Dimensions and location of the accessible optical area

State system for ensuring the uniformity of measurements. Parameters of ultrasonic fields. General requirements to measuring methods and characterization of fields in the frequency range 0,5 to 40 MHz