State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring phase shift angle and field intensities ratio distribution in apertures of antenna system with operating dimension from 0,5x0,5 to 3x3 m2 at the frequency range from 8,2 to 12 GHz
Drinking water. Prepared conditioned water for alcoholic beverages. Determination of the silicon concentration by the photometric method in the form of molybdosilicic acid
€10
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