Indicator material

Details Indicator material Indicator material

G - Physics

01

N

150/21

G01N 21/78 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1150609

INDICATOR MATERIAL ABSTRACT Indicator material for monitoring personal exposure to hazardous substances in ambient air comprising a pigment material, a binder and a sensitizer coated upon a transparent support member as a porous coating which permits gaseous diffusion throughout the coating is disclosed. Detection or monitoring is effected when the indicator material undergoes a visually observable reaction with hazardous material in the atmosphere at room temperature.

353292

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