Ethanol Dry Gas Canister

Ethanol Dry Gas Canister

• A. A piece of allied equipment used to verify the accuracy and precision of the EC/IR II
• B. A device for measuring ambient humidity
• C. A container for storing breath samples
• D. A calibration cap for mouth alcohol

Answer: (A)

The essential idea here is how an Ethanol Dry Gas Canister is used for instrument verification. This device provides a known, stable concentration of ethanol in dry gas so the EC/IR II can be tested to confirm it reads the expected value. By delivering this standard gas to the analyzer, you verify both accuracy (the reading matches the known value) and precision (the reading is consistent across checks). The gas is dry to prevent moisture from skewing readings, which keeps the verification reliable. It’s not intended to measure ambient humidity, store breath samples, or function as a mouth alcohol calibration cap. Its role is quality control and calibration verification of the EC/IR II.

The essential idea here is how an Ethanol Dry Gas Canister is used for instrument verification. This device provides a known, stable concentration of ethanol in dry gas so the EC/IR II can be tested to confirm it reads the expected value. By delivering this standard gas to the analyzer, you verify both accuracy (the reading matches the known value) and precision (the reading is consistent across checks). The gas is dry to prevent moisture from skewing readings, which keeps the verification reliable. It’s not intended to measure ambient humidity, store breath samples, or function as a mouth alcohol calibration cap. Its role is quality control and calibration verification of the EC/IR II.