Lead Acetate Test Paper
- Dip the test paper into the water for a few seconds, and remove.
- At approximately 1-3ppm, the white paper will start to turn grey. As the concentration increases, the color of the paper will turn darker up to 400ppm. If the Sulfide concentration is high (100 ppm+), the paper should turn black fast (within a few seconds). Lower concentrations will take a little longer. In very dilute concentrations, it is better to take a drop or two of solution and place it on the paper.
- You can also moisten the paper with distilled water and place in an area where Hydrogen Sulfide is thought to be present (an acetate buffer is not necessary).
