GB/T 26040-2010 Sodium stannate

GB/T 6678-2003 General principles for sampling chemical products GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 23278.1-2009 Methods for chemical analysis of sodium stannate—Part 1:Determination of tin content—Titration GB/T 23278.2-2009 Methods for chemical analysis of sodium stannate—Part 2:Determination of iron content—1,10-phenanthroline photometric method GB/T 23278.3-2009 Methods for chemical analysis of sodium stannate—Part 3:Determination of arsenic content—Molybdoantimonyarsenate blue spectrophotometric method GB/T 23278.4-2009 Methods for chemical analysis of sodium stannate—Part 4:Determination of lead content—Flame atomic absorption spectrometry GB/T 23278.5-2009 Methods for chemical analysis of sodium stannate—Part 5:Determination of antimony content—Malachite green photometric method GB/T 23278.6-2009 Methods for chemical analysis of sodium stannate—Part 6:Determination of free alkali content—Titration GB/T 23278.7-2009 Methods for chemical analysis of sodium stannate—Part 7:Determination of alkali insoluble matter—Gravimetric analysis GB/T 23278.8-2009 Methods for chemical analysis of sodium stannate—Part 8:Determination of nitrate content—Ion selective electrode method