The Phosphorus (Reactive and Total) TNTplus Vial Test brings expert low-range phosphorus testing to your Hach spectrophotometer. Each vial can be used to determine either Reactive (ortho) Phosphorus or Total Phosphorus in wastewater, drinking water, boiler water, surface water, and process water — the ascorbic acid method used is equivalent to EPA 365.1.

• Range: 0.15-4.50 mg/L PO₄ (0.05-1.5 mg/L PO₄-P)
• 25 tests per box
• No reagent blank required — saves time and reduces cost per test
• Truecal™ lot-specific calibration data included with each vial for consistent, defensible results
• 2D barcode automatically logs batch number and expiry date with each measurement, and flags expired reagent
• Digestion can be performed directly in the sealed vial, avoiding evaporation loss
• Applications: boiler water, cooling water, discharge, groundwater, industrial wastewater, municipal water, nutrient monitoring, source water

Brand: HACH
Product Number: TNT843