Conclusion Te calibration standard is the linchpin of maintaining and documenting that an agency’s breath testing devices are maintained with evidential accuracy. A thorough understanding of the ethanol gas standards that are most frequently used in workplace alcohol testing programs will give the highest level of assurance that a program can successfully defend their evidential quality breath alcohol test results. ❚
References 1
Kurt M. Dubowski, “Tests for BAC in Highway Safety Programs—Supervision and Expert Testimony Course: Dry Gas Alcohol Controls,” Indiana University, Center for Studies of Law in Action, 1996.
2
NHTSA Model Specifications for Calibrating Units for Breath Alcohol Testers. Federal Register Vol. 62, No 156, Aug. 13, 1997, pgs. 43419–43420.
3 4
Airgas USA, LLC
Stability of Ethanol/Nitrogen Content in Dry Gas Cylinders, Melissa Kennedy, Virginia Dept. of Forensic Science, 2012.
Jack Singleton is founder and President of AlcoPro, Inc,. AlcoPro is a distributor and manufacturer of screening and evidential quality drug and alcohol testing devices
and related supplies to law enforcement, corrections, substance abuse treatment programs, and workplace markets. With more than 30 years of experience in the alcohol testing industry, AlcoPro’s training offerings predate the DOT’s creation of Breath Alcohol Technician certification in the early 1990s.
The take-away: Don’t use a tank that is very cold and allow a minimum of 15 minutes for a very cold tank to warm up before use.
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