1 / 13

Method 203

Method 203. Quality Assurance/Quality Control Requirements for Continuous Opacity Monitoring Systems (COMS). Background/History. Proposed in October, 1992 Addition to 40 CFR Part 51, Appendix M Specified quality assurance requirements/procedures

trish
Télécharger la présentation

Method 203

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Method 203 Quality Assurance/Quality Control Requirements for Continuous Opacity Monitoring Systems (COMS)

  2. Background/History • Proposed in October, 1992 • Addition to 40 CFR Part 51, Appendix M • Specified quality assurance requirements/procedures • After initial demonstration of compliance with PS-1

  3. Background/History, cont’d • Minimum quality control (QC) and quality assurance (QA) • Assess and assure the quality of COMS performance

  4. Requirements • Daily checks • Zero and span (upscale)

  5. Requirements, cont’d • Quarterly performance checks • Optical alignment • Optical surface dust accumulation • Zero and upscale response • Zero compensation • Stack exit correlation error • Calibration error

  6. Requirements, cont’d • Annual checks • Zero alignment

  7. Monitor Acceptance Criteria • Out-of-control periods • Daily checks • Quarterly performance audits • Annual checks • Data capture • 95 percent valid data capture

  8. Recent Activities • Reopened comment period • March 2001 • Established Stakeholders Workgroup • Monthly conference calls • Re-write and re-propose Method 203

  9. Revised Method 203 • Requirements • Eliminate optical surface dust accumulation, stack exit correlation error, zero and upscale response • Optical alignment • Checked when stack temperature is +/- 20 percent of typical operating temperature • Zero alignment • Required to be done off stack every 3 years

  10. Revised Method 203, cont’d • Monitor acceptance criteria • Out-of-control periods (Calibration Drift) • The beginning of the period corresponds to the completion of the daily calibration drift check • Out-of-control periods (Quarterly Performance Audits and Annual Checks) • No change

  11. Revised Method 203, cont’d • Data Capture • 95 percent of the source’s operating hours per quarter • Allow the use of substitute monitors • Previously certified to meet PS-1 • Perform calibration error check • Check calibration drift on a daily basis

  12. Revised Method 203, cont’d • Corrective action procedures • Describes corrective action required to return an opacity monitor to normal operation • Specifies four classes of maintenance and repair procedures • Routine/preventative maintenance • Measurement non-critical repairs • Measurement critical repairs • Rebuilt or refurbished analyzers

  13. Current Schedule • Re-proposal package published in the Federal Register – December 2002 • Promulgation package published in the Federal Register – December 2003

More Related