Hanna phosphate checker showing a reading of 0.47 ppm. Phosphate checkers can be used to measure phosphate levels in marine and freshwater systems. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Davies, Andy |
Taille de l’image : | 6048 px × 4024 px |
Model Release : | Non requis |
Restrictions : |
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