The Lovibond DPD No. 1 Reagent is the global standard for free chlorine testing in water quality analysis. Using the trusted DPD colorimetric method, this reagent reacts with free chlorine (Cl₂) to produce a clear pink coloration, enabling precise measurement through photometers, colorimeters, or visual comparators.
Available in tablet, powder pillow, or liquid form (depending on the testing kit), the DPD No. 1 reagent ensures rapid and accurate chlorine detection across laboratories, municipal water plants, swimming pools, industrial water systems, and field testing environments.
With a reaction time of approximately 1 minute and a standard sample volume of 5–10 mL, the reagent delivers fast, stable, and reproducible color development. This makes it ideal for routine monitoring of disinfection levels, ensuring water is safe, compliant, and properly treated.
Perfect For:
• Free chlorine testing in water treatment plants
• Swimming pool and spa water monitoring
• Drinking water quality analysis
• Industrial and wastewater chlorine control
• Laboratory and field test kits
• Municipal water authorities and environmental monitoring agencies
Key Features:
• Measures free chlorine (Cl₂) using the trusted DPD method
• Produces a stable pink color for accurate colorimetric analysis
• Compatible with photometers, colorimeters, and visual comparators
• Available as tablet, powder pillow, or liquid (depending on kit)
• Fast ~1-minute reaction time
• Works with 5–10 mL sample volumes
• Ensures reliable, consistent, and repeatable chlorine measurements
• Suitable for routine professional water testing
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