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RECORD NUMBER: 30 OF 58

OLS Field Name OLS Field Data
Main Title NBS/EPA (National Bureau of Standards/Environmental Protection Agency) Certified Reference Material Performance Audit Program: Status Report 1.
Author Wright, R. S. ; Eaton, W. C. ; Decker, C. E. ;
CORP Author Research Triangle Inst., Research Triangle Park, NC.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1985
Report Number EPA-68-02-3767; EPA/600/4-85/033;
Stock Number PB85-185833
Additional Subjects Standards ; Auditing ; Chemical analysis ; Environmental surveys ; Carbon monoxide ; Nitrogen oxide(NO) ; Sulfur dioxide ; Concentration(Composition) ; Propane ; Stability ; Certified reference materials
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB85-185833 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 46p
Abstract A traceability procedure has been established which allows specialty gas producers to prepare gaseous pollutant Certified Reference Materials (CRMs). The accuracy, stability and homogeneity of the CRMs approach those of NBS Standard Reference Materials (SRMs). Part of this procedure is an independent quality assurance audit of each CRM batch by an EPA-coordinated auditor. As of August 1984, 33 candidate batches had been audited. In general, the agreement between the producer's analytical results and the audit results has been within plus or minus 0.5 percent relative. Additional data suggest that CRMs are stable during their two-year certification periods.
PUB Date Free Form Apr 85
Category Codes 7D; 68A; 99A
NTIS Prices PC A03/MF A01
Primary Description 600/08
Document Type NT
Cataloging Source NTIS/MT
Control Number 517223362
Origin NTIS
Type CAT