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Wator allows the quick and easy determination of the water distribution in butter. In contact with water the paper develops dark spots. Size and number of these spots are correlated to the distribution of water in butter. This is evaluated with a 5-point evaluation chart described in DIN 10 311.
| Platform | Qualitative test paper |
| Lenght | 78 mm |
| Parameter | Water |
| Detection limit | Water - Traces of water |
| Color change | Water - light blue → dark blue |
| Width | 40 mm |
| Shelf life (from production) | 2 Year(s) |
| Storage temperature | 4−30 °C |
| Scope of delivery | 50 test papers in a plastic box |
| Hazardous material | No |
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