• The CTC participates annually in Proficiency Testing Programs of the Cement and Concrete Reference Laboratory (CCRL) of the USA both in Portland and Blended cement.
  • The CTC participates regularly in inter-laboratory testing exercises.
  • All CTC analysts undergo regular and refresher training on chemical and physical testing of cement, cement raw and in-process materials.
  • The CTC uses PNS and ASTM standard test methods that are internationally accepted and recognized and are validated under Philippine conditions
  • The CTC regularly uses Certified Reference Materials (CRM) to monitor and evaluate accuracy of the laboratory.
  • The CTC uses equipment that conforms to the requirements of the test methods. All undergo regular calibrations and/or checks.
  • The CTC’s testing facilities conforms to the requirement of the standards and are designed for the intended use.
  • The CTC uses chemical and physical testing supplies that conform to the requirement of the test methods.
  • All samples received are properly documented and coded to prevent bias and ensure confidentiality.