Summary of the 1983 EPA (Environmental Protection Agency) national performance audit program on source measurements. Final report
In the spring and fall of 1983, the Quality Assurance Division conducted the National Audits for Stationary Source Test Methods. The audit materials consisted of: a calibrated orifice for Method 5 (dry gas meter only), five simulated liquid samples each for Method 6 (SO/sub 2/) and Method 7 (NOx), two coal samples for Method 19A, and a disposable gas cylinder for Method 3 (Orsat analyzer). Participating laboratories sent their data to the Source Branch and in return received a written report comparing their results to EPA's. In the Method 5 spring audit, the mean value for all participants differed by 5.7% from the true (EPA) value. For the fall audit, the participants mean was 4.1% from the true value. In the two Method 6 audits, the average mean differed by 3% from the expected value. The average mean in the two Method 7 audits was 15% from the expected value. In the two coal audits, the parameters measured were sulfur, moisture, ash, and Btu. On the average for the sulfur analysis 85% of the participants measured within 10% of the expected value; for Btu 100% of the participants measured within 10% of the expected value. In the two Method 3 audits, each parameter had only one concentration. The means for CO/sub 2/ were within 10% (spring) and 6% (fall) from the expected value. For both audits, the mean for O2 was less than 1%.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (USA). Environmental Monitoring and Systems Lab.
- OSTI ID:
- 5758698
- Report Number(s):
- PB-85-165025/XAB; EPA/600/4-80/004
- Country of Publication:
- United States
- Language:
- English
Similar Records
Summary of the 1984 EPA (Environmental Protection Agency) National Performance Audit Program on source measurements. Final report
Summary of the 1986 EPA (Environmental Protection Agency) National Performance Audit Program on source measurements. Final report
Related Subjects
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
500600* -- Environment
Atmospheric-- Regulations-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
AIR QUALITY
AUDITS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
COAL
COMBUSTION PRODUCTS
COMPLIANCE AUDITS
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL QUALITY
FOSSIL FUELS
FUELS
GAS ANALYSIS
INDUSTRIAL WASTES
LABORATORIES
MATERIALS
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
QUALITY ASSURANCE
SAMPLING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
US EPA
US ORGANIZATIONS
WASTES