The Hanna HI-7040L Zero Oxygen Solution is a ready-made chemical solution used to eliminate dissolved oxygen from water samples, ensuring precise and interference-free measurements in oxygen-sensitive applications. This solution is essential for laboratories, environmental analysts, and industries that require accurate calibration of dissolved oxygen (DO) meters or preparation of oxygen-free water for controlled testing.

Formulated for professional calibration of polarographic and galvanic DO probes, the HI-7040L helps users achieve dependable zero-point calibration—critical for high-accuracy dissolved oxygen analysis. It also supports research and laboratory procedures that require deoxygenated water, providing consistent, reproducible results.

Whether you are conducting water quality research, environmental sampling, biochemical analysis, or system validations, this zero oxygen solution ensures your results remain accurate and trustworthy.

Perfect For:

• Zero-point calibration of dissolved oxygen meters
• Laboratory and industrial DO measurements
• Water quality testing and environmental monitoring
• Biochemical and microbial analysis
• Preparation of oxygen-free water samples
• Research requiring controlled DO conditions

Key Features:

• Prepared chemical solution for removing dissolved oxygen
• Ideal for zero-point calibration of DO meters and probes
• Ensures accurate, stable, and reproducible DO measurements
• Suitable for polarographic and galvanic sensors
• Ready-to-use—no mixing or dilution required
• Provides oxygen-free conditions for sensitive analytical testing
• Reliable performance for laboratory, environmental, and industrial use