We have an internal Quality Department composed of Quality Control and Quality Audit, directly reporting to COO of the company. There's an independent lab for Quality Department where most of the routine tests are done everyday, to name a few as of below,

1. Density

2. Moisture Content

2. Melt Flow Rate

3. Moisture Content

4. Mechaical Property

-Hardness

-Tensile Strength

-Flexural Modulus

-Impact Strength

5. Thermal Property

-Glass Transition Temperature (Tg)

-Heat Deflection Temperature (HDT)

-Melting Point (T_m )

6. Flammability Property

-HB, V2, V1, V0, 5V

-Oxygen Index

7. Electrical Property

-Dielectric Constant

-Comparative Tracking Index ( CTI )

.......

Though we can do 99% of the routine tests by ourselves in our own lab, we usually send our material to outside labs such as SGS for double check, especially when there're requirements from our customers for regulation compliance reports.