Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 11

Main Title

Analysis of Commercial Nitric Oxide Protocol Gases: A Quality Assurance Audit.

Author

Hines, A. P. ;

CORP Author

Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.

Publisher

Oct 92

Year Published

1992

Report Number

EPA/600/R-92/225;

Stock Number

PB93-131191

Additional Subjects

Nitrogen oxide(NO) ; Quality assurance ; Air pollution monitors ; Gas analysis ; Supplying ; Certification ; Quality control ; Gas cylinders ; Performance standards ; Regulations ; US EPA ; Air samplers ; Calibrating ; Protocol Gases ; Standard reference materials ; Atmospheric Research and Exposure Assessment Laboratory

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB93-131191	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

12p

Abstract

EPA has initiated a national QA program on the suppliers of Protocol Gases. In this program, which will operate continuously, Protocol Gases are obtained and analyzed by EPA. The results of this EPA analysis are then compared to the Certificate of Analysis supplied with the Protocol Gas. Reported here is a comparison between the results obtained by EPA on eight Protocol-2 Gases containing approximately 40 ppm of NO in nitrogen and the concentrations provided by the suppliers of the Protocol Gases. EPA's and the suppliers' values agreed within 2% for seven of the eight Protocol-2 Gases; the eighth differed by 2.5%.