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Ion-exchange membranes. Method for determination of total and equilibrium exchange capacity
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Surface active agents. Determination of mineral sulfate content. Titrimetric method
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Graphite. General requirements for methods of analysis
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Surface-active agents. Method for determination of biodegradability rate in aquatic environment
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Dissolved acetylene and gaseous acetylene for technical purposes. Specifications
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Manganese ores, concentrates and agglomerates. Methods for determination of sulphur
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