Clay raw materials. Method for determination of refractoriness of fusible clays
Document status: Replaced by GOST 21216-2014
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Document status: Replaced by GOST 1510-2022
Ammonium sulphate technical. Determination of matter insoluble in water content. Gravimetric method
Document status: Active
Lead concentrates. Determination of arsenic. Photometric and titrimetric methods
Document status: Active
Hard-metals bits for core exploratory drilling in medium hard. Specifications
Document status: Active
