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Ores and concentrates of non-ferrous metals. Method for determination of moisture content
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Biomass. Determination of the ash content by standard method
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Bauxite. Method for determination of aluminium oxide content
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Coagulants for potable water supply. General requirements and method of efficiency determination
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Amur Region Law No. 89-OZ dated 10.11.2005 (rev. as of 09.11.2021) 'About environment protection in Amur Region' (adopted by Amur Regional Council of Peoples' Deputies on 21.10.2005)
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