Enrollment Deadline: 1 November 2025

Participants will test samples using the simulator of their breath alcohol instruments, collect quantitative data, and report their results.

Sample Description: Four bottles, each containing 500 mL of a water-based solution with varying concentrations of ethanol. Ethanol levels are in case-like ranges, allowing labs to test the calibration and breath ports of their instruments and check their calibration.

Samples ship in June.

This test is included on CTS' Scope of Accreditation to ISO/IEC 17043.