The darker the color spot, the more alcohol in the system ... It might actually be more beneficial to use a sweat strip to test the levels of ethanol in your system rather than a breathalyzer ...

"On the basis of a saliva sample, the innovation incidates when the blood alcohol content exceeds 0.2 ‰ (promilles). The test result is indicated as the darkening of the test strip's ...

When testing pH levels on a test strip, color conversion charts provide a handy reference: more acidic solutions turn test strips red when a lot of acidity is present and turn test strips yellow ...

In November, Halámek introduced a prototype for a color-changing test strip that detects blood alcohol content (BAC) based on ethanol levels in sweat. Currently there is a zero-tolerance policy ...

Participating bars have a stock of alcohol test strips that can detect date rape drugs. The businesses can also display signs letting patrons know the strips are available. At the launch of the ...