Alcohol Tests

Alcograd

$5.00 +GST

Alcograd is a clean simple and non-invasive single use breathalyser perfect for use on the job, at home or anywhere you need an accurate and reliable breath alcohol test.

Alcograd is small, portable breathalyser test kit used for the quantitative determination of BAC ranging from 0.0 – 0.8 %. It provides convenient, non-invasive and fast alcohol on-the-spot screening results in a matter of minutes.

This is the most affordable detection system available allowing alcohol specific detection on the job, at home or anywhere you go.

Principle

Alcograd works on the principle of ethyl alcohol (ethanol) in the blood partitioning with the air in the lungs, which causes it to escape via exhaled breath.

The method of detection employs potassium dichromate crystals, which are maintained in a fresh environment, within a sealed ampoule until the test is administered. When the crystals come into contact with ethyl alcohol they cause the ethanol to be oxidised into acetic acid (vinegar), according to the equations below. When this occurs, the crystals loose oxygen atoms and undergo a corresponding colour change, which is used as an indicator to identify the presence of alcohol.

  (i) Cr2O72- + 3C2H5OH + 8H+ → 2Cr3+ + 3CH3CHO + 7H2O

  (ii) 2Cr2O72- + 3C2H5OH + 16H+ → 4Cr3+ + 3CH3COOH + 11H2O

Procedure


Each Alcograd test kit contains of the following inclusions:

  • Sealed test tube
  • Full instructions

The following instructions provide details on how to use Alcograd to determine the blood alcohol level of a test subject.

  • Wait for at least 20 minutes after the last alcoholic drink and 5 minutes after the last cigarette.
  • Press both ends of the tube to break the aluminium seal.
  • Use the test immediately following activation.
  • The subject should take a deep breath and blow in one continuous breath through the end of the tube designated by the arrows.
  • Ensure that no inhalation takes place.
  • After 2 minutes identify any colour change amongst a majority of the crystals.

Interpretation

Negative

Most of the crystals remain clear in colour. This indicates that the breath alcohol is approximately 0 %.

Positive

In the instance of a positive test, where the level of alcohol detected in the breath corresponds to a blood alcohol level of > 0.02 %, crystals within the tube will the colour corresponding to the BAC as marked on the tube.

Note: For best results it is recommended that comparison with an unused test be made, in order to establish if a colour change has occurred.

Downloads


The following documents related to Alcograd are available for viewing and download: