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Leather. Method of determination of nitrogen content

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Fertilizers. Determination of magnesium by atomic absorption spectrometry

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Optics and photonics. Optical manufacturing machines. General specifications

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Social services for the population. Quality assurance system of social service institutions

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Pipeline valves. Degreasing methods

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Canned foods. Preparation of reagent solutions, dyes, indicators and culture media for microbiological analysis

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