1. Quality Management & Operations Support Branch Quality Assurance Section Presented By: Webster Tasat

2. Quality Assurance Section n Quality Control n Quality Assessment

3. Quality Control n Internal tasks which are performed on a routine basis to control the accuracy and precision of a measurement process. –Calibrations –Zero and Span Checks –Blanks –Duplicates

4. Quality Assessment n External tasks which are performed on an occasional basis to assess the capability and performance of a measurement process. –Performance audits –System audits –Interlaboratory comparisons

5. Performance Audits n A quantitative comparison of an air monitoring site’s analyzers and/or samplers with a device of known accuracy. Performance audits may also involve a laboratory’s ability to identify specific compounds. –Gas Analyzer Audits –Flow Audits –MET Audits –Laboratory –Siting

6. System Audits n An on-site inspection and review of facilities, equipment, training, procedures, recordkeeping, data validation, data management, and reporting aspects of an organization’s monitoring program.

7. Quality Assurance Audit Van

8. Audit Van Interior

9. Audit Gas Flow

10. Gas Analyzer Audits n Analyzers –O3, CO, NO2, SO2, H2S n Through-the-Probe (TTP) n Audit concentration levels (O3, NO2, SO2, H2S) –High:0.35 - 0.45 ppm –Mid:0.15 - 0.20 ppm –Low:0.03 - 0.08 ppm

11. CO Analyzer

12. Flow Audits n Samplers –TSP, Lead, Dichot, TEOM, PM10, PM2.5 n Transfer Standards –Orifice, MFMs

13. PM2.5 Sampler

14. MET Audits n MET Sensors –Temp., WD, WS, RH, BP, Solar Radiation n Audit Sensors –NIST traceable –Factory Certified

15. Met Tower

16. Laboratory Audits n Toxic Audits –Sampler flow rates –Sampler leak checks n NMHC Audits n Whole Air Comparison Check n Laboratory Analysis

17. NMHC Set-Up

18. Additional QA Activities n Report on Quality Control/Quality Assessment Data n Oversee Data Control n Research/Develop New Audit Equipment and Procedures