HACH TNT869 Water Hardness TNTplus Vial Test (20 - 350 mg/L as CaCO₃, 25 Tests)

Instrument: DR3900, DR6000, DR1900, DR2800, DR3800, DR5000

Method Name: Metalphthalein

Method Number: 10293

Number of Tests: 25

Parameter: Water Hardness

Platform: TNTplus™

Range: 20–350 mg/L as CaCO₃; 5–100 mg/L Ca; 3–50 mg/L Mg

Sample Requirements: The pH of the water sample must be between pH 4–9. The temperature of the water sample and reagents must be between 15–25 °C (59–77 °F).

Special Remarks: 3 parameters within 1 test.

Storage Conditions: 15–25 °C.