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Solid mineral fuel. Determination of sulfur by IR spectrometry
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Urea for industrial use. Determination of nitrogen content. Titrimetric method after distillation
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Urea for industrial use. Determination of iron content. Photometric method with use of 2,2'-bipyridyl
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Testing of chemicals of environmental hazard. Fish, acute toxicity test
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Laundry detergents. Method for measuring the foaming in washing machine
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