Limited Electromagnetic Interference Testing of Evidential Breath Testers

摘要

The anomalous behavior of a specific evidential breath tester (EBT) in the presence of an electromagnetic field from a police transceiver was brought to the attention of the National Bureau of Standards (NBS) by the National Highway Traffic Safety Administration (NHTSA) early in 1982. This report presents the results of a limited study, conducted by the NBS, to identify evidence of potential electromagnetic interference (EMI) problems with a selected sample of EBT's currently used by State and local governments.