Chemical products. Designation for degree of purity
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Water for analytical laboratory use. Specifications
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Gases. Chromatographic method for the determination of traces of saturated and unsaturated hydrocarbons.
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Gases, cryoproducts, water. Methods for the determining of mineral oil content.
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Inert gases. Chromatographic method for the determination of oxygen impurity using a device with thermochemical detector.
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Primary concentrated krypton. Krypton and methane chromatographic determination method.
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Crude argon. Argon fraction. Chromatographic methods of oxygen, nitrogen, argon determination.
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Oxygen. Chromatographic method for determination of nitrogen and argon impurities.
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Helium. Chromatographic method for the determination of oxygen and nitrogen impurities.
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Air. Cryoproducts. Colourimetric method for determination of carbon disulphide impurities.
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1-(1-oxy-2-naphthylazo)-6-nitro-2-naphthol-4-sulfonic acid sodium salt, indicator. Qualification "pure for analysis
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