Quantofix - Phosphate (#91320)

Pack Size: box of 100 strips & reagent. Hazard Class /UN Number: Not Restricted. Storage Temp: Room Temperature. Test sticks and reagents for the semi-quantitative determina-tion of ortho-phosphate (PO 4 3û ) in solutions. Gradation of scale: 0-3-10-25-50-100 mg/l PO 4 3- white to blue-green. Only ortho-phosphate is determined. Other phosphates, such as poly-, pyro-, and metaphosphates, have to be decomposed for the determination of total phosphates. Silica (SiO 2 ) contents above 10 mg/l react in the same way giving a blue coloration. Larger amounts of sulphide ions (S 2û ) cause a brown colour of the test field, smaller concentrations cause low results.