[Duration of absorption in alcohol intake of 0.3, 0.5 and 0.8 g of alcohol per kg of body weight in 30 minutes].

In expert opinion the time of absorption after ethanol consumption often must be estimated, because back calculation is not permitted during this period of possible ethanol absorption. HEIFER called this time "waiting times" in back calculation. He undertook an investigation of these "waiting times" in drinking experiments with different dosages and a drinking period of 60 minutes. The presented investigation dealt with the maximum "waiting times" after a shorter time of drinking. Within 30 minutes three groups, each amounting to 10 persons, were given 0,8, 0,5 and 0,3 g of ethanol per kg body weight. The results of these experiments showed that the maximum "waiting times" in back calculation after a drinking period of 30 minutes sometimes are longer than the "waiting times", calculated by HEIFER after a drinking period of 60 minutes.