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

(−)*