Texas Intoxilyzer 9000 Certification Practice Test 2025 - Free Intoxilyzer Practice Questions and Answers

Grain alcohol, also known as ethanol, is the type of alcohol referred to in the regulations. It is the form of alcohol that is typically found in alcoholic beverages and is the primary substance measured by breath testing devices such as the Intoxilyzer 9000. This is significant because the primary concern of breath alcohol testing is the measurement of the concentration of ethanol in a person's system, which is used to assess impairment and determine legal limits for driving under the influence.

Understanding the distinction between grain alcohol and other types of alcohol is crucial. Methyl alcohol, for example, is toxic and not commonly consumed as a beverage, whereas propyl alcohol, while it can be used in industrial applications and may have some overlap with alcohols used in products, is not what is measured in intoxication assessments. Cereal alcohol is somewhat synonymous with grain alcohol, but the established term within regulations is specifically "grain alcohol," which emphasizes the source—cereal grains—from which ethanol is derived. Thus, the regulation’s focus is on ethanol, produced primarily from fermenting grains, highlighting its relevance in legal and health assessments concerning alcohol consumption.