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Barite concentrate. Method for determination of water soluble salts and water soluble calcium
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Essential oils of bergamot, lemon, citron and lime, fully and partially reduced in bergapten. Determination of bergapten content by high-pressure liquid chromatography (HPLC)
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Petroleum bitumens. Method for determination of paraffin content
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Solid biofuels. Fuel specifications and classes. Part 5. Firewood for non-industrial use
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