In order to help manufactures control the quality of their products, STC provides a wide range of chemical testing.

Household Chemicals

A) Cleaner

  • Antibacterial Effectiveness Test
  • Sodium hypochlorite content (ASTM D2022)
  • Anionic active matter content
  • Phosphorus content


B) Toothpaste

  • Fluoride content
  • pH value
  • Diethylene glycol content


Industrial Chemicals

  • Thinner (e.g. toluene, benzene content)
  • Petroleum Products
    • Viscosity
    • Density
    • Element content etc.

Accreditation and Recognition

We are accredited by China National Accreditation Service for Conformity Assessment (CNAS) in most of the areas in chemicals, food, cosmetics, traditional Chinese medicine and environmental testing, while chemicals, food and traditional Chinese medicine testing are also accredited under the Hong Kong Laboratory Accreditation Scheme (HOKLAS). For tableware testing, we are accredited by LUCIDEON of the United Kingdom.