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Wood-protective means. General specifications

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Reagents. Calcium nitrate tetrahydrate. Specifications

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Brown coals, hard coals, anthracites, solid dispersed organic matters and carbon materials. Method for determination of reflectance indices

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Chalk. Kinds, marks and general technical requirements

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Reagents. Acetyl chloride. Specifications

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Plants of geological prospecting boring. Boring pumps. Test methods

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