Specifications
| Measuring range | 2-20 ppm 1-10 ppm |
|---|---|
| Number of pump strokes | 1/2 (50mr) 1 (100mr) |
| Sampling time | 1 minute/1 pump stroke |
| Detectable limit | 0.2 ppm |
| Shelf life | 3 years |
| Operating temperature | 0 – 40 °C |
| Colour change | Pale purple → Pale yellow |
| Reaction principle | By reacting with phosphoric acid, PH indicator is discoloured |
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