Concentration Verification of Ethanol/Nitrogen Compressed Gas Cylinders Prior to use for Periodic Determinations of Accuracy in California

A method that uses compressed gas ethanol breath standard (EBS® cylinders to perform periodic determinations of accuracy on evidential breath alcohol instruments in California was developed. To use EBS cylinders, the California State Department of Health Services required verification of the ethanol...

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Bibliographic Details
Published in:Journal of analytical toxicology 2001-04, Vol.25 (3), p.215-218
Main Authors: Matthias, Dianna J., Harvey, Dennis C., DeFraga, Dan E.
Format: Article
Language:English
Subjects:
Air Pressure
Alcoholism and acute alcohol poisoning
Algorithms
Biological and medical sciences
Breath Tests
Calibration
California
Central Nervous System Depressants - analysis
Ethanol - analysis
Medical sciences
Nitrogen - chemistry
Solutions
Spectrophotometry, Infrared
Toxicology
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Summary:A method that uses compressed gas ethanol breath standard (EBS® cylinders to perform periodic determinations of accuracy on evidential breath alcohol instruments in California was developed. To use EBS cylinders, the California State Department of Health Services required verification of the ethanol content of the EBS cylinders using an infrared method. The infrared method developed employs a modified Alcotest 7110 MK III-C manufactured by National Draeger, Inc. that functions at the 9.5-ram wavelength of the infrared spectrum. Criteria and methodology for verifying EBS cylinder ethanol concentrations are described.
ISSN:0146-4760
1945-2403
DOI:10.1093/jat/25.3.215