JIS Test Powder (Class 12 Carbon Black)

Reference standard:JIS Z 8901

Material used：Carbon black

Physicochemical characteristic

Absorbed amount of DBP	25～34 ml/100g
Adsorbed amount of iodine	22～30 mg/g

Absorbed amount of DBP： The amount of the DBP（Dibutyl phthalate）necessary to fill the void among particles shows the state of the agglomeration of particles.

Adsorbed amount of iodine：This value is an amount of iodine which is adsorbed by the unit mass of carbon-black and relates with the specific surface area.

Particle size range : 0.03～0.20μm

Measured by microscopic method.
Particle size distribution is not prescribed.