YS/T 803-2012 Smelter grade alumina

GB/T 19077.1-2008 Particle size analysis—Laser diffraction methods—Part 1:General principles GB/T 6609.1-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of moisture-Gravimetric method GB/T 6609.1-2018 Chemical analysis methods and determination of physical performance of alumina—Part 1:Determination of trace elements content—Inductively coupled plasma atomic emission spectrometry method GB/T 6609.2-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of the loss of mass at 1100°C-Gravimetric method GB/T 6609.2-2009 Chemical analysis methods and determination of physical performance of aluminium hydroxide—Part 2:Determination of loss of mass at 300 ℃ and 1 000 ℃ GB/T 6609.2-2022 Chemical analysis methods and determination of physical performance of alumina—Part 2:Determination of loss ofmass at 300 ℃ and 1 000 ℃ GB/T 6609.3-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of silicon dioxide content-Molybdenum blue photometric method GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of ferric oxide content-Orthophenanthroline photometric method GB/T 6609.5-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of sodium oxide content GB/T 6609.22-2004 Chemical analysis methods and determination of physical performance of alumina—Sampling GB/T 6609.24-2004 Chemical analysis methods and determination of physical performance of alumina—Measurement of the angle of repose GB/T 6609.25-2004 Chemical analysis methods and determination of physical performance of alumina—Determination of untamped density GB/T 6609.25-2023 Chemical analysis methods and determination of physical performance of alumina—Part 25:Method for the determination of tapped and untapped density GB/T 6609.27-2004 Chemical analysis methods and determination of physical performance of alumina Particle size analysis-Sieving method GB/T 6609.27-2009 Chemical analysis methods and determination of physical performance of alumina—Part 27:Partical size analysis—Method using electriformed sieves GB/T 6609.27-2023 Chemical analysis methods and determination of physical performance of alumina—Part 27:Particle size analysis—Sieves method GB/T 6609.30-2009 Chemical analysis methods and determination of physical performance of alumina—Part 30:X-ray fluorescence spectrometric method for the determination content of trace elements GB/T 6609.30-2022 Chemical analysis methods and determination of physical performance of alumina—Part 30:Determination of trace elements—Wavelength dispersive X-ray fluorescence spectrometric method GB/T 6609.32-2009 Chemical analysis methods and determination of physical performance of alumina—Part 32:Determination of α-alumina content by X-ray diffraction GB/T 6609.33-2009 Chemical analysis methods and determination of physical performance of alumina—Part 33:Determination of attrition index GB/T 6609.34-2009 Chemical analysis methods and determination of physical performance of alumina—Part 34:Method of calculating alumina content GB/T 6609.35-2009 Chemical analysis methods and determination of physical performance of alumina—Part 35:Determination of specific surface area by nitrogen adsorption GB/T 6609.35-2023 Chemical analysis methods and determination of physical performance of alumina—Part 35:Determination of specific surface area—Nitrogen adsorption method GB/T 6609.37-2009 Chemical analysis methods and determination of physical performance of alumina—Part 37:Determination of the particles size content less then 20 μm 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