Hanna HI3831F | Free Chlorine Chemical Test Kit (DPD Method)

Ensure the safety of your drinking water and swimming pools with the Hanna HI3831F, a high-accuracy Free Chlorine Chemical Test Kit designed for facility managers, homeowners, and water quality technicians in Pakistan. Chlorine is the most common disinfectant used to kill bacteria, but testing is vital: too little leaves water unsafe, while too much causes bad taste and irritation.

The HI3831F uses the DPD Method, which is the globally recognized standard for measuring Free Chlorine. Unlike cheaper "OTO" kits that only turn yellow and cannot distinguish between active chlorine and "spent" chloramines, the DPD reaction produces a distinct Pink color proportional to the active Free Chlorine concentration.

This kit features a Color Comparison Cube, allowing for easy visual matching side-by-side with the sample. It covers the critical range of 0.0 to 2.5 mg/L (ppm), which is perfect for monitoring chlorination in drinking water tanks, RO systems, and swimming pools.

Key Features of the Product

• Measures Free Chlorine: Specifically detects "Free Available Chlorine"—the active form that actually sanitizes the water. This is the parameter required for most health department regulations.
• DPD Method Accuracy: Utilizes the DPD (N,N-diethyl-p-phenylenediamine) reaction, providing a clear pink color change. This is far superior to orthotolidine (yellow) kits for accuracy and safety.
• Color Comparison Cube: Includes a dedicated plastic cube with a printed color scale (0.0, 0.5, 1.0, 1.5, 2.0, 2.5 mg/L), making it easy to determine the exact level without guessing.
• Critical Range: The 0.0 to 2.5 mg/L range covers the EPA/WHO recommended limits for drinking water (0.2–2.0 mg/L) and pools (1.0–3.0 mg/L).
• Economical: Supplied with reagents sufficient for approximately 50 tests.
• Complete Kit: Comes with 20mL beaker, color comparison cube, Reagent 1, and Reagent 2 in a compact case.

Frequently Asked Questions (FAQs)

Q: What is the difference between HI3831F and HI3831T?

A: F = Free, T = Total.

• HI3831F (This Model): Measures Free Chlorine (the active sanitizer). This is what you measure daily to ensure water is safe.
• HI3831T: Measures Total Chlorine (Free + Combined). This is used to check if you have "chloramines" (dead chlorine) building up.

Q: Why is DPD better than the yellow (OTO) drops?

A: OTO is toxic and cannot distinguish between Free and Total chlorine. DPD is safer and specifically measures the active Free Chlorine, giving you the true sanitizing power of your water.

Q: Can I use this for drinking water?

A: Yes. This is the ideal kit for checking residual chlorine in storage tanks and tap water to ensuring it is safe for consumption (typically 0.2 to 0.5 ppm).

Q: Are refills available?

A: Yes. When your reagents run out, you do not need to buy a new cube. Simply order the HI3831F-050 Replacement Reagent Set from Kamadi Pakistan to get another 50 tests.

Buy with Confidence

Verify your sanitation effectively. Order the authentic Hanna HI3831F Free Chlorine Test Kit from Kamadi Pakistan today. As a leading reseller of water quality instruments, we ensure you receive fresh reagents, genuine DPD refill kits, and reliable technical support for your water safety needs.