(a) Approved methods.

1. (1) At the time of this printing, the methods listed in this section are approved for the determination of alcohol concentration in blood, urine, breath, or other bodily substances in accordance with this part.
2. (2) Methods approved hereafter may be obtained upon request from the Office of Alcohol Testing.
3. (3) Only brief descriptions are printed here.

(b) Gas chromatography.

1. (1) This method consists of separating volatile components of a sample by passing the sample through a column within the gas chromatograph, then passing the components through a detector system.
2. (2) The detector sends signals to a recording device which provides the results or sufficient information for the analyst to compute the quantity of the component of interest.