Hanna HI7040L Zero Oxygen Solution Set (500 mL)

Description

The Hanna HI7040L zero oxygen solution is a high-quality, bicomponent calibration standard specifically designed for setting the zero point on dissolved oxygen (DO) probes. This 500 mL set from Hanna Instruments ensures reliable and precise calibration, making it indispensable for anyone using polarographic or galvanic DO sensors

Accurate dissolved oxygen measurement is critical in applications like aquaculture, wastewater treatment, environmental monitoring, brewing, and laboratory analysis. Many users rely solely on air calibration (100% saturation), but experts recommend a two-point calibration—including zero oxygen—for superior accuracy, especially in low-DO environments.

• Key Features and Specifications

  • Volume: 500 mL (prepared solution after mixing)
  • Type: Bicomponent (liquid base + dry reagent packet or small bottle to create oxygen-free environment)
  • Compatibility: Works with both polarographic (e.g., HI76407 series) and galvanic DO probes
  • Preparation: Mix the two components fresh; the prepared solution is stable for about 1 month
  • Quality: Made from reagent-grade chemicals; air-tight bottle with tamper-proof seal, lot number, and expiration date
  • Purpose: Creates a true zero-oxygen standard for accurate two-point calibration (zero + air/slope calibration)
  • Essential for calibrating dissolved oxygen meters in water quality testing, aquaculture, wastewater treatment, environmental monitoring, brewing/winemaking (to measure low DO levels), and laboratory analysis
  • Critical when high accuracy is needed, especially after membrane/electrolyte replacement or for low-range DO measurements