State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of alternating current from 1·10 -8 to 100 A in the frequency range from 1·10 -1 to 1·10 6 Hz
Thermoplastics pipes and fittings. Vicat softening temperature. Part 3. Test conditions for acrylonitrile-butadiene-styrene and acrylonitrile-styrene-acrylate pipes and fittings