YS/T 461.2-2003 The methods for chemical analysis of lead and zinc bulk concentrates —The determination of iron content—The Na2EDTA titrimetric method

YS/T 461.1-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of lead and zinc content—The Na2EDTA titrimetric method after precipitation separation YS/T 461.3-2003 The methods for chemical analysis of lead-zinc bulk concentrates—The determination of sulfur content—The combustion-neustralinzation titrimetric method YS/T 461.4-2003 The methods for chemical analysis of lead and zinc mixed concentrates—The determination of arsenic content—The iodimetric method YS/T 461.5-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of silicon dioxide content—The molybdenum blue spectrophotometric method YS/T 461.6-2003 The methods of chemical analysis of lead and zinc bulk concentrates—The determination of mercury content—The atomic fluorescence spectrometry method YS/T 461.7-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of cadmium content—The atomic absorption method YS/T 461.8-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of copper content—The atomic absorption method YS/T 461.9-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of silver content—The atomic absorption method YS/T 461.10-2003 The methods for chemical analysis of lead and zinc bulk concentrates—The determination of gold and silver content—The fire-assaying methods

YS/T 461.2-2013 Methods for chemical analysis of lead and zinc bulk concentrates—Part 2:The determination of iron content—Na2EDTA titrimetric method