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Brown coals, hard coals and anthracite. Radiation methods for the determination of ash content
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Fat and oil derivatives. Fatty acid methyl esters (FAME). Determination of potassium content by atomic absorption spectrometry
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Reagents. Zinc compounds. Polarographic method for the determination of copper, lead and cadmium contents as impurities
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Petroleum products. Determination of sulfur content by method of wavelength-dispersive X-ray fluorescence spectrometry
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