Small craft. Measurement of airborne sound emitted by powered recreational craft. Part 3. Sound assessment using calculation and measurement procedures
Yttrium and its oxides. Method of determination of such impurities as oxides of praseodymium, neodymium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium and ytterbium
State system of assurance of measurement uniformity. Metrological supervision performed by the metrological services of legal entities. General principles
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