Russian standards PDF
Non-destructive testing. Radio wave apparatus. General technical requirements
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Fodder. Determination of ammonia nitrogen content and actual acidity
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Metal-cutting machine tools. Methods of checking cylindrical specimens for size constancy within one batch
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Soils. Determination of mobile compounds of phosphorus and potassium by Chiricov method modified by CINAO
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Soils. Determination of mobile compounds of phosphorus and potassium by Egner-Riem method (DL-method)
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