M9
Before coming into contact with oxygen, blood is typically a dark red or maroon color.
Before coming into contact with oxygen, blood is typically a dark red or maroon color.
When bleach comes into contact with pink fabric, it typically turns white or a lighter shade of pink.
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.
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M9 Paper
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m9 paper