YB/T 5277-2005 Metallurgical chrome ore

YB/T 5277-2014 Chrome ore used in metallurgy

GB/T 2007.1-1987 General rules for the sampling and sample preparation of minerals in bulk—Sampling by manual method GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk Sample preparation by manual method GB/T 2007.6-1987 General rules for the sampling and sample preparation of minerals in bulk—Determination of moisture content—Heat drying method GB/T 2007.7-1987 General rules for the sampling and sample preparation of minerals in bulk—The method for determination of size by manual sieving YB/T 191.1-2001 Methods for chemical analysis of chromium ores—The gravimetric method for the determination of moisture content YB/T 191.2-2001 Methods for chemical analysis of chromium ores—Titrimetric method for the determination of oxidation chromium content YB/T 191.3-2001 Methods for chemical analysis of chromium ores—The perchloric acid dehydration gravimetric method for the determination of silicon dioxide content YB/T 191.4-2001 Methods for chemical analysis of chromium ores—The potassium dichromate titrimetric method for the determination of total iron content YB/T 191.5-2001 Methods for chemical analysis of chromium ores—The EDTA titrimetric method for the determination of calcium oxide and magnesium oxide content YB/T 191.6-2001 Methods for chemical analysis of chromium ores—The reduced molybdophosphate spectrophotometric method for the determination of phosphorus content YB/T 191.7-2001 Methods for chemical analysis of chromium ores—The infrared absorption method for the determination of sulfur content YB/T 5142