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General-purpose fireclay and semiacidic refractory articles. Specifications
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Packing. Gas chromatographic determination of benzene, toluene, ethylbenzene, m-, o- and p-xylene, isopropylbenzene, styrene, б-methylstyrene, benzaldehyde content in the air medium
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Fluid fertilizers. Preliminary visual examination and preparation of samples for physical testing
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Electricity metering equipment (a.c). Particular requirements. Part 23. Static meters for reactive energy
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