Horiba ORP Standard Solution 225 mV @ 25 °C 500 mL

Horiba ORP Standard Solution 225 mV @ 25 °C, 500 mL (500-225)

The Horiba ORP Standard Solution 225 mV (Model 500-225) provides a ready-to-use calibration standard for accurate oxidation-reduction potential (ORP) measurement. Horiba formulates this solution to deliver a stable reference potential of +225 mV at 25 °C, enabling reliable calibration and verification of ORP meters and electrodes.

This standard solution supports consistent ORP calibration by providing a known and reproducible reference value. Users can calibrate ORP instruments quickly without solution preparation, which helps reduce handling errors and improves measurement reliability.

The 500 mL bottle offers sufficient volume for repeated calibration cycles, making it suitable for routine use in laboratories, environmental monitoring programs, water treatment facilities, and industrial process control. The solution works with benchtop, handheld, and portable ORP meters.

Key Features

• ORP standard solution 225 mV at 25 °C

• Ready to use with no dilution or preparation required

• Provides a stable and reproducible ORP reference value

• Supports accurate ORP meter and electrode calibration

• Suitable for laboratory, industrial, and field applications

• Supplied in a 500 mL bottle for routine calibration use

Technical Specifications

• Product type: ORP standard solution

• ORP value: +225 mV at 25 °C

• Volume: 500 mL

• Model code: 500-225

• Formulation: Ready-to-use calibration standard

Applications

• Calibration of ORP meters and electrodes

• Routine instrument verification and quality control

• Water and wastewater ORP monitoring

• Environmental and industrial process analysis

• Laboratory research and educational use