| 摘要 |
<p>The indicator has a deliquescent substance that forms solution, during exceeding of deliquescent point, where the indicator is not provided with complex agent. A metal and/or semi-metal, which reacts with the solution under formation of the substance, which is formed in a partial transparent manner. The substance exhibits color, which is different from that of the metal. The substance and/or the metal are attached on a plastic foil. The metal and/or semi metal is provided in form of a metal and/or semi metal coating-, particles and plates. A binding agent is pressed on a metal layer (b).</p> |
