How Accurate are BAC Tests?

People widely use breath alcohol testers or breathalysers to determine their blood alcohol concentration (BAC). The BAC is the amount of alcohol in your body. Your BAC level could evaluate your current intoxication level and state. Alcohol has corresponding effects on the body at differing levels, ranging from mild to severe impairments. For instance, a small portion of alcohol can cause mild effects, such as altered mood or lower inhibitions. On the other hand, higher alcohol amounts have moderate to severe impacts, such as blurred vision, slurred speech, poor balance, and uncoordinated movements. Therefore, high BAC levels pose safety risks and are highly discouraged in driving or working. One way to ensure that you are safe for driving is to take BAC tests after consuming alcohol.

Law enforcement conducts preliminary breath tests to apprehend suspected intoxicated drivers. In Australia, the legal limit is 0.05% BAC or 0.05g of alcohol for every 100ml of blood. So, you can face legal consequences if your BAC is over the legal limit in a police officer’s breathalyser test. But how accurate are BAC tests? Police breathalysers use advanced fuel cell sensors to estimate your BAC. Fuel cell devices like BACtrack personal breathalysers are sensitive to ethanol and accurately measure the BAC through breath samples. These sensors are also less likely to produce false-positive results. The sensors produce chemical reactions once it reacts with ethanol. The reaction generates electrical currents in proportion to the alcohol concentration in the breath. The stronger the electrical currents, the higher the BAC. Similarly, the breath alcohol concentration is proportional to the concentration of alcohol in the blood.

Performing BAC Tests on Your Own

If you have a positive BAC result in a roadside screening, the police will ask you to take an evidentiary test. Typically, you would also get an infrared spectrometry (IR) test at a police station, the most accurate testing equipment to determine your exact BAC. However, even a breathalyser test would be enough evidence for the police to detain you. Therefore, you must check your BAC level before driving to avoid legal problems and prevent road accidents. Using a breathalyser is the most efficient way to monitor your BAC. Breathalysers are portable and accessible. You can conveniently and quickly administer BAC tests to confirm your alcohol level on the go. BACtrack breathalysers only take 10 to 15 seconds to process your BAC results.

How can you ensure accurate personal BAC tests? Breathalyser sensors drift over time and may affect the quality of your breath tests. Additionally, frequent use can cause a buildup of alcohol residue quickly. Depending on your unit and the test volume, getting your breathalyser recalibrated is highly recommended. Regular calibration is vital for maintaining accuracy and consistency over a more extended period. Breathalysers Australia offers complete recalibration services for all BACtrack units sold.

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