State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring volumetric flow of gas within the range of 1x10 in minus 6 up to 1x10 in 2 degree m3/s
Electrical equipment and a. c. installations on up to 3 kV voltages and higher. Test methods of the electrical equipment insulation dielectric strength on the installation site
€10
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