Group | Alcohol swab | Waiting time | Method of withdrawal | Number of specimens | Detection of ethanol |
I-1 | individually packaged type | <5 seconds | With the ethanol-wipe | 10 | (−)* |
I-2 | Without the ethanol-wipe | 10 | (−)* | ||
II-1 | individually packaged type | 1 minute | With the ethanol-wipe | 10 | (−)* |
II-2 | Without the ethanol-wipe | 10 | (−)* | ||
III-1 | Thoroughly ethanol-impregnated wipe | <5 seconds | With the ethanol-wipe | 10 | (−)* |
III-2 | Without the ethanol-wipe | 10 | (−)* | ||
IV-1 | Thoroughly ethanol-impregnated wipe | 1 minute | With the ethanol-wipe | 10 | (−)* |
IV-2 | Without the ethanol-wipe | 10 | (−)* |