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Liquefied petroleum gases. Method of sampling
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Ammonium nitrate for industrial use. Method determination of total nitrogen content (titrimetric) after distillation
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Solid biofuel. Determination of calorific value
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Fuels for internal combustion engines. Liquefied petroleum gases. Technical requirements and test methods
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Reagents. Potassium fluoride 2-aqueous. Specifications
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