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Petroleum asphalt. Method for determination of softening point by ring and ball
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Bauxite. Methods for determination of vanadium oxide (V) content
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Testing of chemicals of environmental hazard earthworm reproduction test (Eisenia fetida/Eisenia andredi)
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Brown coals, hard coals, anthracite, combustible shales and coal briquettes. Methods of sampling and preparation of samples for laboratory tests
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