Background concentration means such concentration of that substance as is present in:
Representative sample means a sample of a universe or whole (e.g., waste pile, lagoon, ground water) which can be expected to exhibit the average properties of the universe or whole.
Alcohol concentration means the number of grams of alcohol per 100 milliliters of blood or per 210 liters of breath.
Industry representative sample means liquor that is placed in the possession of the department for testing, analysis, and sampling by a local industry representative on the premises of the department to educate the local industry representative of the quality and characteristics of the product.
Representative of a prospective contractor means an officer or director of a corporation, a member or manager of a limited liability corporation, a partner of a partnership or a trustee of a trust of the prospective contractor.