State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring current intensities from 0,04 up to 300 A within the frequency range of 0,1 up to 300MHz
Thermoplastics pipes. Method for determination of tensile properties. Part 2. Pipes made of unplasticized poly(vinyl chloride), chlorinated poly(vinyl chloride) and high impact poly(vinyl chloride)