Black
black
Black
White or brown spots on M9 paper could be from other substances such as dirt, dust, or residue from handling. It's important to consider the context in which the M9 paper was exposed and use additional testing methods to confirm the presence of a liquid chemical agent.
Black
black
G-series Nerve
M8 paper turns red or pink when it comes in contact with liquid nerve or blister agents. This color change indicates the presence of these chemical warfare agents.
G-series nerve
Yellow to gold is an indicated of chemical 'G' agents, which are nerve agents.
it changes color
it changes color
G-series nerve