Allen Johnson DQ'd?

[Jared Jordan]

They're very close. A breath testing machine measures deep lung alcohol. One of the ways that your body burns off alcohol is through the tissue at the bottom of your lungs. To get a good sample, you have to exhale completely. The machine takes the alcohol it detects in the lungs via a fuel cell. When alcohol hits the fuel cell it converts into electricity from which the machine calculates a blood-alcohol content based on an assumed partition ratio (lot of argument about whether this is fair if anyone's interested in some extra reading).

Not sure how the private firm does it, but in order for the BAC results of a breach machine to be admitted in California courts, they have to be calibrated every 10 days or 150 test subjects, whichever is reached first. Some states also allow you to have an extra sample retained (blood usually) if you want to have an independent laboratory do the testing.

In short, these machines are extremely accurate. Dead nuts.

[John Leichtamer Jr]

I wonder if they ever tested Compton in the morning?????

Hammer

[Jim Cimarolli]

Jared,

Just for grins I'd like to sit down in front of one of them machines with a quart of rot gut whiskey and just see how much I could drink before I blew over the limit!

[Jared Jordan]

Originally Posted by Jim Cimarolli

Jared,

Just for grins I'd like to sit down in front of one of them machines with a quart of rot gut whiskey and just see how much I could drink before I blew over the limit!

Cimo....count me in!

[Chad Rhodes]

Originally Posted by John Leichtamer Jr

I wonder if they ever tested Compton in the morning?????

Hammer

yea right.

[X-TECH MAN]

Originally Posted by John Leichtamer Jr

I wonder if they ever tested Compton in the morning?????

Hammer

LOL............Do the machines read that high?

[Chad Rhodes]

Originally Posted by X-TECH MAN

LOL............Do the macines read that high?

they have one in the NHRA lobby, its set up like a slot machine. Compton is still trying to get the jackpot

[BobOrme]

Originally Posted by Jared Jordan

In short, these machines are extremely accurate. Dead nuts.

I strongly disagree. There are non-alcoholic things that can be consumed or used that will provide false positive readings with a Breathalyzer when talking about a level as low as what AJ blew.

[Ed Fernandez]

Originally Posted by BobOrme

I strongly disagree. There are non-alcoholic things that can be consumed or used that will provide false positive readings with a Breathalyzer when talking about a level as low as what AJ blew.

Like what?Any examples?

[Superfan1]

Originally Posted by Ed Fernandez

Like what?Any examples?

I have heard that most mouthwashes/rinses, because they contain alcohol, can cause a positive low reading. I don't know if this is true or not; maybe someone can provide some documentation one way or the other.