The raw material used for a traditional material is classified into 4 kinds, a substrate material raw material, a fusion raw material, a cultured raw material and a plastic raw material, but the most is a natural raw material.
I go to time as well as testing of raw material, a built-in test and the grade of the cost side in a mine in case of adoption and am investigating about the geological feature, the possible mining amount and quality control, etc..
It’s analyzed variously according to the need.
* Chemical analysis (X-ray fluorescence)
* Mineral distinction (X-ray diffraction)
* Water quality test (pH)
* The weight, water and the water content
* Particle size distribution (the laser diffraction system)
* Color measuring (the color system difference total)
* Heat analysis (thermal expansion, TG – DTA and quench)
* Fire proof test
* Alien substance check