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Petroleum and petroleum products. Determination of sulfur by method of energy-dispersive x-ray fluorescence spectrometry
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Pneumatic hammer drills. Drill steels. General technical requirements
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Reagents. Method for determination of ammonium impurity
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Concentrated kaolin. Method for determination of viscosity
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Liquefied petroleum gases. Method for determination of hydrogen sulfide, mercaptan sulfur and carbon sulphoxide
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