Enhanced Evaporative Emissions

ATDS maintains the highest standards of quality control in all phases of laboratory operations. Evidence of the success of the Quality Control Program is ATDS' repeat performance as one of the top independent laboratories in the annual CARB sponsored correlation cross-check program and by our status as the California laboratory of choice for Ford, Chrysler and other major manufacturers.

 

All calibration and test data are reviewed by a quality auditor to verity that procedures have been correctly followed and that the data have been accurately recorded and transcribed. Quality auditors have the authority to reject any and all test data. Test vehicles are not released to clients until test results have been reviewed and approved by the quality auditor.

 

Routine periodic calibrations are performed in accordance with requirements of and at least as often as required by the Code of Federal Regulations. All analytical Instruments are calibrated with NIST traceable gases certified by the provider. The instruments are calibrated at 11 points (including zero) across each range using a precision gas divider. EPA Protocol gases are routinely tested on all analyzers to ensure continued accuracy and repeatability of results.

 

ATDS regularly participates in correlation testing including periodic correlation vehicle tests which provide cross checks between major manufacturers, EPA's Ann Arbor laboratory and the California ARB. ATDS' test data is routinely accepted by EPA and the ARB for certification and enforcement activities and by major manufacturers for their development and surveillance activities.