Test tubes
Test tubes are simple analytical devices to determine the airborne concentration of chemical substances. More than 160 test tubes for different substances are available. Usually standard equipment of CBRN teams.
Glossary Source
JRC EU CBRNe Glossary
(
EU Glossary on Chemical, Biological, Radiological, Nuclear, and Explosive risks
)
https://publications.jrc.ec.europa.eu/repository/bitstream/JRC128863/JRC128863_01.pdf