Maritime navigation and radiocommunication equipment and systems. Shipborne voyage data recorder (VDR). Part 1. Voyage data recorder (VDR). Technical and performance requirements, methods of testing and required test results
State system for ensuring the uniformity of measurements. Best available techniques. Metrological maintenance of automated measuring systems for control of harmful industrial emissions. Main principles
Thermal power plants. Heat-power equipment. Water-chemical regime cleaning and conservation, based on an amine-containing reagent «VTIAMIN». Norms and requirements
Yttrium and its oxides. Method of determination of such impurities as oxides of praseodymium, neodymium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium and ytterbium
€10
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