Specifies the requirements, sampling, test methods, inspection rules and marking, packaging, transportation and storage of CI Pigment Blue 15:1 products. Appearance, color, relative tinting power, 105°C volatile matter, water-soluble matter, pH value of aqueous suspension, conductivity of water extract, sieve residue (total sieve residue, iron, sand), crystallization resistance, Oil absorption, light resistance and heat resistance inspection items.