| abstract |
The invention discloses a digital evaluation method for chemical impregnation test. A photograph of the dip tester including the color changing pad is taken with a mobile device such as a mobile phone. Photograph the dipping tester above or next to the reference card so that the dipping tester and reference card are in the same frame. The photo thus obtained is analyzed by a processor on the mobile device to determine the characteristic values of the water being measured. The characteristic can be, for example, pH, iron concentration, copper concentration. The water may be central heating system water. |