Hanna Instruments Water Analysis Division has released the HI 3833 phosphate test kit.
The quick, easy test comes with a simple colour chart.
Phosphate is used in water treatment, heating systems and cooling systems as a corrosion inhibitor. It is also measured as a nutrient in agriculture and horticulture. High concentrations of phosphate facilitate growth of algae, build up of corrosion and can cause environmental pollution and eutrophication.