Our instruments are designed to Chinese national and transport industry standards (GB/T, JTG, JT/T). Many products also meet international standards, for example ISO 679 for cement mortar testing, AASHTO T312 for the Superpave gyratory compactor, and the civil aviation standards AC-137-CA, AHM910 and AHM913 for our runway friction testers. The applicable standards are listed on each product page; contact us if your project requires a specific standard.
