What is M8 paper used for during CBRN inspections?

• A. M8 paper is a colorimetric detector used on surfaces to indicate the presence of chemical agents.
• B. M8 paper detects liquid agents.
• C. M8 paper is a protective garment.
• D. M8 paper is a type of mask.

Answer: (A)

M8 paper is a colorimetric detector used on surfaces to indicate the presence of chemical agents. In a CBRN inspection, you test suspected surfaces by applying or pressing the paper onto residues or liquid contaminants. The paper’s reagents react with chemical agents and produce a visible color change, giving a quick, on-the-spot indication that contamination may be present. This helps guide decontamination decisions and further verification steps. It’s specifically for detecting liquid agents on surfaces, not for sensing airborne vapors, and it isn’t a protective garment or a mask—the latter roles belong to PPE rather than detection media.