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Petroleum products. Determination of carbon residue by Conradson
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Iron ores, agglomerates and pellets. Method for determination of gas permeability and layer shrinkage during reduction
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Petroleum and petroleum products. Determination of sulfur by method of energy-dispersive x-ray fluorescence spectrometry
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Ammonium nitrate for industrial use. Method determination of total nitrogen content (titrimetric) after distillation
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