California Test Method Withdraws
Caltrans Materials Engineering and Testing Services (METS) has withdrawn 10 California Test (CT) Methods. These CTs are being withdrawn as they are no longer called out in Caltrans contract documents. The withdrawn CTs will remain accessible on Caltrans CT website, however METS will not provide further updates.
Each withdrawn CT on the website will be noted under the Date Modified column: “Withdrawn”. The downloadable PDF will identify the CT number, followed by “Withdrawn. It is no longer maintained by Caltrans.”
Comprehensive List of the latest Withdrawn CTs:
- CT 307: Moisture Vapor Susceptibility of Bituminous Mixtures
- CT 310: Determination of Asphalt and Moisture Contents of Bituminous Mixtures by Hot Solvent Extraction
- CT 330: Residue by Evaporation of Emulsified Asphalt
- CT 337: Determining the Effect of Heat and Air on Asphaltic Materials
- CT 345: Determining the Quantity of Asphalt Rejuvenating Agent Required for an Asphaltic Pavement
- CT 351: Determining the Percent of Residue of Emulsified Asphalt Rejuvenating Agents
- CT 362: Determining Asphalt Content in Bituminous Mixtures by Vacuum Extraction
- CT 377: Determining the Percent and Grade of Recycling Agent to Use for Hot Recycling of Asphalt Concrete
- CT 378: Determining the Percent and Grade of Recycling Agent to Use for Cold Recycling of Asphalt Concrete
- CT 379: Determining Asphalt Content of Bituminous Mixtures by Use of the Nuclear Gage
For questions, please contact the Caltrans METS California Test Methods Coordinator at CTMCoordinator@dot.ca.gov.