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Authorized Laboratory Lists
Per Section 50 "Prestressing Concrete" of the California Department of Transportation (the Department) Standard Specifications, pretensioning jacks shall be calibrated by an authorized laboratory.
Listed below are authorized laboratories to perform pretensioning calibrations. To be on this list, please refer to the Department's requirements, "Authorized Laboratory Qualification Requirements to Perform Pre-Tensioning Calibrations for the California Department of Transportation (Caltrans)". The document is found at the following link: Authorized Laboratory Qualification Requirements to Perform Pre-Tensioning Calibrations
Fabricator | Location | Contact | Expiration Date |
---|---|---|---|
Ad-Tek, Inc. (Authorized To Calibrate Using Load Cells Up To 50,000 Lbf Capacity) |
28111 SE Wally Road Boring, OR 97009 |
503-663-7265 ext>110, stefanie@advancedcalibration.com |
November 23, 2026 |
Pacific Calibration Services |
6280 San Ignacio Avenue, Suite D San Jose, CA 95119 |
(650) 591-2177 |
April 21, 2025 |
Technical Associated Services |
7832 Franklin Drive Huntington Beach, CA 92648 |
(714) 841-0475 |
March 31, 2023 |
Caltrans contact: Structural Materials Testing Lab, smtl@dot.ca.gov