Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 211

OLS Field Name OLS Field Data
Main Title Accuracy Assessment of EPA Protocol Gases Purchased in 1991.
Author Coppedge, E. A. ; Logan, T. J. ; Midgett, M. R. ; Shores, R. C. ; Messner, M. J. ;
CORP Author Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC.
Publisher Dec 92
Year Published 1992
Report Number EPA-68-D1-0009; EPA/600/J-93/263;
Stock Number PB93-212694
Additional Subjects Standards ; Air pollution detection ; Gas analysis ; Gas detectors ; US EPA ; Performance evaluation ; Auditing ; Air pollution standards ; Calibrating ; Quality assurance ; Quality control ; Gas cylinders ; Mixtures ; Pollution regulations ; Reprints ; Reference materials ; Protocols
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB93-212694 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/22/1993
Collation 5p
Abstract
The U.S. Environmental Protection Agency (EPA) has established quality assurance procedures for air pollution measurement systems that are intended to reduce the uncertainty in environmental measurements. The compressed gas standards of the program are used for calibration and audits of continuous emission monitoring systems. EPA's regulations require that the certified values for these standards be traceable to National Institute of Standards and Technology (NIST) Standard Reference Materials or to NIST/EPA-approved Certified Reference Materials via either of two traceability protocols. The manufacturer assessment was conducted to: (1) document the accuracy of the compressed gas standards' certified concentrations; and (2) ensure that the compressed gas standards' written certification reports met the documentation requirements of the protocol. All available sources were contacted and the following gas mixtures were acquired: (1) 300-ppm SO2 and 400-ppm NO in N2; and (2) 1500-ppm SO2 and 900-ppm NO in N2.