With the help of advanced instruments and methods, Longshine strictly controls the quality of our products, in order to provide high-qualified and suitable pigments for our respected customers.
The quality control process consists of Coloristic Analysis and Chemical/Physical Analysis. Coloristic Analysis Properties include Transparency, Tinting Strength and Color data which compared with the valid standard of CIELAB (DA/DB/DC/DH/DL/DE). Chemical and Physical Analysis Properties are composed by various parts such as Iron Content, Iron Free Content, Volatile Substance at 105 ℃, Moisture, Water Soluble Substance, Sieve Residue, Oil Absorption, pH Value, Conductivity, Resistance and so on.
Conductivity
Iron Contect
Oil Absorption
pH Value
Water Solble Content
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