Quality control is conducted throughout the entire manufacturing process. This includes checking the starting materials, intermediate and finished products, as well as the manufacturing environment to ensure we achieve the highest level of quality before we release anything for further processing or supply.
The test items for critical control points include:
Raw Materials
Components
Semi-Finished Products
Finished Products
Functionality
compatibility, torque, sealing property, adhesion.
Appearance
colour, texture, odour
Physical
moisture, viscosity, absorbance, specific gravity
Chemical
acid value, saponification value, iodine value, oxidation value, hydroxyl value
Microbial
TPC, yeast and moulds
Heavy Metals
arsenic, lead, mercury, cadmium.