Analysis of EPA (Environmental Protection Agency) protocol gases used for calibration and audits of continuous emission monitoring systems and ambient air analyzers - results of audit 6

Technical Report · Tue Oct 01 00:00:00 EDT 1985

OSTI ID:5945714

Wright, R S; Tew, E L; Decker, C E; von Lehmden, D J

A performance audit was conducted on EPA Protocol Gases used for calibration and audits of continuous emission monitoring systems and ambient air analyzers. Fifty gaseous pollutant calibraton standards were purchased from eleven specialty gas producers. These standards contained sulfur dioxide in nitrogen (70 and 300 ppm), nitric oxide in nitrogen (70 and 400 ppm), and carbon monoxide in air (30 ppm). Seventy percent of the producers certified concentrations were accurate to within plus or minus 2 percent and 94 percent of the concentrations were accurate to within plus or minus 5 percent. These accuracies are significantly better than the accuracies obtained during a 1981 audit of commercial cylinder gases. In general, the lower concentration sulfur dioxide EPA Protocol Gases were less accurate than other EPA Protocol Gases. A secondary purpose of the audit was to examine the EPA Protocol Gases certificates of analysis for the inclusion of all data required by the protocol. In general, the producers supplied most of the information required on their certificates of analysis.

• Research Organization: Research Triangle Inst., Durham, NC (USA)
• OSTI ID: 5945714
• Report Number(s): PB-86-118510/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
GAS ANALYSIS
AIR POLLUTION MONITORING
ACCURACY
STANDARDS
CARBON MONOXIDE
NITRIC OXIDE
SULFUR DIOXIDE
AUDITS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SULFUR COMPOUNDS
SULFUR OXIDES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)