NBS/EPA (National Bureau of Standards/Environmental Protection Agency) Certified Reference Material performance audit program: Status Report 1
Technical Report
·
OSTI ID:5571105
A traceability procedure was established that 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 +-0.5% relative. Additional data suggest that CRMs are stable during their two-year certification periods.
- Research Organization:
- Research Triangle Inst., Research Triangle Park, NC (USA)
- OSTI ID:
- 5571105
- Report Number(s):
- PB-85-185833/XAB
- Country of Publication:
- United States
- Language:
- English
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500200* -- Environment
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54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
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CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
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CHEMICAL ANALYSIS
HYDROCARBONS
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500600 -- Environment
Atmospheric-- Regulations-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION SOURCES
PROPANE
STABILITY
STANDARDS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES