Schoknecht G, Brackemeyer U
Institut für Sozialmedizin und Epidemiologie des Bundesgesundheitsamtes, Berlin.
Blutalkohol. 1992 Sep;29(5):316-25.
4.135 measurements of breath- and blood-alcohol concentration were performed by police in 1986 and 1987 using the Alcomat A 11 (wavelength 3.4 microns). Important conclusions from these measurements can be derived with regard to legal breath-alcohol limits. The parameter for judgement is the breath- to blood-alcohol concentration ratio. Extreme deviations which have to be considered as malfunctions were found only in 0.4% of all cases, despite of the fact that not all precautions for evidential measurements are fulfilled. The reasons for malfunction may result from faulty breath- or blood-alcohol determinations or may simply be errors of transfer. The frequency of relatively too high breath-alcohol values (e.g. by interfering substances) is nearly the same as of relatively too low values (e.g. by too small breath volume). It has to be considered that the requirements according to the expertise of the Federal Health Office for evidential breath-alcohol measurements are only fulfilled partly. Especially the influence of breath-temperature is disregarded although the influence on frequency distributions is important as the comparison with other measurements demonstrates. A further result shows that the frequency distribution of the breath- to blood-alcohol ratio does not depend on blood-alcohol values.
1986年和1987年，警方使用Alcomat A 11（波长3.4微米）对呼吸和血液中的酒精浓度进行了4.135次测量。从这些测量中可以得出关于法定呼吸酒精限量的重要结论。判断参数是呼吸与血液酒精浓度比。尽管并非所有证据性测量的预防措施都得到满足，但在所有案例中，只有0.4%的情况发现了必须视为故障的极端偏差。故障原因可能是呼吸或血液酒精测定错误，也可能仅仅是转移误差。相对过高的呼吸酒精值（例如受干扰物质影响）的频率与相对过低的值（例如呼吸量过小）的频率几乎相同。必须考虑到，联邦卫生局对证据性呼吸酒精测量的专业要求仅部分得到满足。特别是呼吸温度的影响被忽视了，尽管与其他测量结果的比较表明，其对频率分布的影响很重要。另一个结果表明，呼吸与血液酒精浓度比的频率分布不取决于血液酒精值。
