GB/T 20165-2006 Rare earth polishing powder

GB/T 20165-2012 Rare earth polishing powder

GB 9968-1996 Rare earth nitrate for agricultural use 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 12690.2-2002 Chemical analysis methods for non—RE impurity of rare earth metals and their oxides—Determination of ignition loss content of rare earth oxides—Gravimetric method GB/T 12690.2-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 2:Determination of ignition loss content of rare earth oxides—Gravimetric method GB/T 12690.3-2002 Chemical analysis methods for non-RE impurity of rare earth metals and their oxides—Determination of water content of rare earth oxides—Gravimetric method GB/T 12690.3-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 3:Determination of water content of rare earth oxides—Gravimetric method GB/T 14634.5-2002 Test methods of rare earth three-band phosphors for fluorescent lamps—Determination of density GB/T 14634.5-2010 Test methods of rare earth three-band phosphors for fluorescent lamps—Part 5:Determination of density GB/T 14635.1-1993 Rare earth metals and their compounds—Determination of total rare earth contents—Rare earth oxalate gravimetric method GB/T 20166.1-2006 Chemical analysis methods of rare earth polishing powder—Determination of cerium oxide content—Titrimetric analysis method GB/T 20166.1-2012 Chemical analysis methods of rare earth polishing powder—Part 1:Determination of cerium oxide content—Titrimetry GB/T 20166.2-2006 Chemical analysis methods of rare earth polishing powder—Determination fluorine content—Ion selective electrode analysis GB/T 20166.2-2012 Chemical analysis methods of rare earth polishing powder—Part 2:Determination fluorine content—Ion selective electrode analysis GB/T 20167-2006 Physical test method of rare earth polishing powder—Determination of burnishing mass—Gravimetric analysis method GB/T 20167-2012 Physical test method of rare earth polishing powder—Determination of burnishing mass and scratch—Gravimetry GB/T 20170.1-2006 Test methods for physical characters of rare earth metals and their compounds—Determination for particle size distribution of rare earth compounds