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

GB/T 20170.2-2006 Test method of physical characters of rare earth metals and compounds—Determination on specific surface area of rare earth compounds

GB/T 15445-1995 Graphical representation of results of particle size analysis GB/T 15445.1-2008 Representation of results of particle size analysis—Part 1:Graphical representation GB/T 15445.2-2006 Representation of results of particle size analysis—Part 2:Calculation of average particle sizes/diameters and moments from particle size distibutions GB/T 15445.4-2006 Representation of results of particle size analysis—Part 4:Characterization of a classification process GB/T 15445.5-2011 Representation of results of particle size analysis—Part 5:Methods of calculations relating to particle size analyses using logarithmic normal probability distribution GB/T 15445.6-2014 Representation of results of particle size analysis—Part 6:Qualitative and quantitative representation of particle shape and morphology GB/T 19077.1-2003 Particle size analysis—Laser diffraction method GB/T 19077.1-2008 Particle size analysis—Laser diffraction methods—Part 1:General principles GB/T 15445.3-2025 Representation of results of particle size analysis—Part 3:Adjustment of an experimental curve to a reference model