This standard specifies a method for measuring the particle size distribution of powder coatings with a particle size of 1 to 300 μm as spherical particles by laser diffraction. Note that this method applies only to dry powder.
JIS K 5600-9-3:2006 history
2006JIS K 5600-9-3:2006 Testing methods for paints -- Part 9: Coating powders -- Section 3: Particle size analysis by laser diffraction