LAC 55:I.561. Quality of Glassware and Supplies

A. All nondisposable glassware used in the blood alcohol analyses and standard calibration solutions must be cleaned with non-alcoholic detergents and must be free of any foreign residue. B. All nondisposable supplies must be cleaned and contain no interfering substances which could affect the blood alcohol analysis test. C. All chemicals used shall be at least reagent grade. D. All reagent solutions utilized in confirming instrument calibration, maintenance and certification shall be drawn from commercially available solutions with known and certified alcohol contents between 0.04 grams and 0.40 grams percent. The manufacturer's certificate of standard reagent quality shall be prima facie evidence as to the standard of quality of the reagent solutions.