COMMERCE CITY, Colo. (KDVR) — Colorado has become the first state to pass a law banning an arrest based solely on a colorimetric drug test, a common tool used by police to identify suspected narcotics ...

SAN FRANCISCO – State Senator Scott Wiener, D-San Francisco, introduced a bill on Tuesday that would prohibit law enforcement from making arrests or filing charges based only on certain field tests ...

COLORADO, USA — A new Colorado law restricts the use by police of a controversial field drug test that studies have shown can result in a high percentage of false positive cases. So-called ...

Developed by researchers at the University of Cambridge, the Colorimetrix app uses a smartphone’s camera to accurately read colorimetric test strips to monitor medical conditions. Researchers at the ...

There are a multitude of available test procedures and methods for water and wastewater treatment operators. They range from colorimetric, titrimetric, electrometric (meter & probe), turbimetric, ...