Chlorine Reagent CL 2250 A for Reliable Measurement of Free and Total Chlorine for Safe Water Treatment and System Protection

The Testomat 2000 Reagent CL 2250 A, 500 ml bottle, is used for measuring total chlorine and free chlorine in water samples. The measuring range is 0.00–0.99 mg/l (resolution 0.01 mg/l) and 1.0–2.5 mg/l (resolution 0.1 mg/l).

The CL 2250 A reagent can be used directly in Testomat 2000 CLF or CLT devices without transferring and is ideal for membrane protection in reverse osmosis systems.

Where can the CL 2250 reagent be used to monitor chlorine?

It can be used in:

• Testomat 2000® THCL®
• Testomat 2000® CLF
• Testomat 2000® CLT
• Testomat 2000® CLT self clean

Why is measuring free and total chlorine so important?

Measuring free and total chlorine is a central part of professional water monitoring. Free chlorine (e.g., hypochlorous acid and hypochlorite) is the disinfecting form and crucial for the microbiological safety of water.

Total chlorine also includes combined chlorine (chloramines), which has disinfecting properties but is significantly less effective and can lead to odor and corrosion problems. Monitoring free and total chlorine is essential to ensure water quality, the effectiveness of disinfection, and to detect possible over-concentration in process water.

In sensitive applications such as reverse osmosis systems, precise chlorine monitoring is particularly important because free chlorine can damage or destroy membranes. The CL 2250 A reagent supports safe process control, protects system components, and helps reliably maintain standard and limit values.