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 ...

However, remote or at-home testing introduces various additional logistical and technical issues, such as guaranteeing timely test delivery to a testing user, providing test delivery from a testing ...

Colorimetrix, a new app developed by researchers at the University of Cambridge (UK), turns any smartphone into a handheld spectrophotometer that can read and deliver results from colorimetric tests.

This is especially critical for substances like chromium and nitrate, which pose risks to both human and environmental health. In process water applications, such as steam generation, the presence of ...