The ___________ of the procedure must be adequate for the analysis of breath specimens for determining alcohol concentration.

The specificity of the procedure is crucial because it refers to the method's ability to accurately identify and measure only the substance of interest—in this case, alcohol—while minimizing the interference from other compounds present in the breath sample. High specificity ensures that the analysis targets ethanol specifically and does not erroneously measure other substances that might produce similar signals in the testing equipment.

For breath analysis to be reliable, it’s essential that the Intoxilyzer 9000 effectively differentiates between various alcohol types and other volatile substances. This differentiation is vital for ensuring that results reflect true alcohol concentration levels without contamination from extraneous factors, which could lead to misleading conclusions about a person's intoxication level.

While sensitivity, accuracy, and protocol play important roles in the overall functioning of the breath analysis process, specificity is particularly key for ensuring that the results are pertinent and valid for legal and safety evaluations regarding alcohol consumption.