1 / 12

Instrumental Methods Update

Instrumental Methods Update. Methods 3A, 6C, 7E, 10, & 20. Purpose. Harmonize - Same Performance Tests - Same Calibration Gases Update - Address Outdated Equipment & Procedures Simplify - Plain English Format -Adding Flexibility.

corina
Download Presentation

Instrumental Methods Update

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. Instrumental Methods Update Methods 3A, 6C, 7E, 10, & 20

  2. Purpose Harmonize -SamePerformance Tests - Same Calibration Gases Update -Address Outdated Equipment & Procedures Simplify - Plain English Format -Adding Flexibility

  3. Instrumental Methods Update • Method 3A: O2/CO2 • Method 6C SO2 • Method 7E NOx • Method 10 CO • Method 20 NOx/SO2/Diluent

  4. Performance RequirementsExisting

  5. Current Cal Gas Requirements

  6. Instrumental Methods Update • Additional Revisions • Cal Error/Bias Calculation - % of Std • Dropping Drift Check Between Runs • Bias Test Definition, Correction, Reporting • M7E Converter Efficiency Test • Alternative Interference Test for M6C • Frequency of Interference Test • Alternative Dynamic Spiking Test • M20 Only a Placeholder

  7. Bias Test Revisions • Definition Current: Difference between post-run bias test and calibration error test Proposing: Difference between post-run bias test and cal gas tag value • Dropping Bias Correction • Report Bias as Uncertainty

  8. Interference CheckInterference Gas Challenge to InstrumentAcceptance: Sum < 2.5% of High Cal Value

  9. Frequency of Interference Test Currently: Once for each source category Proposing: Once a year for each tested source category Initial test may be manufacturer certification

  10. Alternative Dynamic Spiking Test • Conducted During Test • Min. 5 1-min. Samples • Recoveries Must Be 100 ± 5% • Can Be Used in Place of Interference & Bias Tests

  11. Low Concentrations Provisions<10 ppm • Bias check ± 0.5 ppm instead of 5% of Emission Std • Initial Manufacturer type certification

  12. SchedulePublication in Federal Register Proposal December ’02 Promulgation December ‘03

More Related