Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V. Part 7. Screened and unscreened flexible cables with two or more conductors
State system for ensuring the uniformity of measurements. Metals and alloys. Vickers hardness test. Part 2. Verification and calibration of testing machines
Liquid petroleum products. Unleaded petrol. Determination of organic oxygenate compounds and total organically bound oxygen content by gas chromatography using column switching
