[Modification of Alcomat breath alcohol determination by benzine].

We examined the period breath-alcohol values may be falsified owing to gasoline vapors with regard to the Alcomat currently used in routine tests. In a sober test person the breath-alcohol concentration was found to be 0.10/1000 24 min. after the inhalation of gasoline vapors, whereas the value measured after 28 min. was still 0.09/1000. 63 min. after the clothes had been moistened with gasoline, a breath-alcohol concentration of still 0.11/1000 could be identified immediately after inhalation.