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Hanna Instruments – HI3840 Total Hardness ( 0-150 mg/L) LR Chemical Test Kit

The HI3840 is a chemical test kit designed to measure total hardness in water using the EDTA titration method for the 0–150 mg/L CaCO₃ range. The kit includes all essential materials, such as a hardness reagent, calibrated vessel, and dropper, for up to 50 tests. It provides accurate measurements with a 5 mg/L resolution, making it ideal for monitoring water quality in residential or industrial applications. The HI3840 helps prevent pipe scaling and ensures proper water treatment.

  • Measurement Type: EDTA titration (colorimetric)
  • Total Hardness Range: 0–150 mg/L CaCO₃
  • Number of Tests: 50
  • Purpose: Quick and accurate determination of water hardness

Description

The HI3840 Total Hardness LR Test Kit provides a simple and reliable method to measure low-range total hardness in water. The sample is titrated with the supplied EDTA reagent, which binds calcium and magnesium ions, producing a measurable color change. The volume of titrant used determines the total hardness concentration with 5 mg/L resolution, offering accurate results for low-hardness water samples.

Monitoring total hardness is essential to avoid scale formation in pipes, corrosion in water systems, and reduced soap efficiency. The kit is self-contained, including all consumables required for testing, and replacement reagents (HI3840-050) are available, making it a cost-effective solution for ongoing water hardness monitoring.

Features

  • Product Type: Total Hardness Test Kit (Low Range)
  • Measurement Method: EDTA titration
  • Total Hardness Range: 0–150 mg/L CaCO₃
  • Resolution: 5 mg/L
  • Number of Tests: 50
  • Package: 30 mL hardness LR reagent, 50 mL calibrated vessel
  • Replacement Reagents: HI3840-050
  • SKU: HI3840

Specifications

SKU HI3840
Product Name Total Hardness ( 0-150 mg/L) LR Chemical Test Kit – HI3840
Quote Required Yes
Hardness, Total Measurement Type titration
Hardness, Total Range 0 to 150 mg/L CaCO₃
Hardness, Total Resolution 5 mg/L
Hardness, Total Method EDTA
Hardness, Total Number of Tests 50
Weight 120 g (4.2 oz.)
Dimensions 115 x 105 x 80 mm (4.5 x 4.1 x 3.1″)
Ordering Information HI3840 test kit comes with 30 mL hardness LR reagent and 50 mL calibrated vessel.

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