Description
Redox buffer solution UH=427 mV / 220 mV is a ready-to-use reference standard for checking and calibrating redox (ORP) electrodes and measuring systems. Defined at the stated millivolt levels, it enables verification of sensor response and instrument offset under controlled laboratory or process conditions. The 250 ml pack size is convenient for routine electrode checks, method validation, and periodic performance confirmation of portable and online redox meters. Net and gross weight are each 0,299 kg, corresponding to a compact bottle that fits easily at the measuring station or in a calibration kit. This redox buffer solution from manufacturer Mettler-Toledo OnLine is intended for laboratories and industrial users who maintain oxidation–reduction potential measurements in water treatment, chemical processing, environmental monitoring, and quality control. Apply fresh solution for each verification step in line with the electrode and instrument instructions, and avoid cross-contamination with pH buffers or sample residues to preserve the defined redox values throughout use.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 250 ml
- Redox values: UH=427 mV / 220 mV
- Product type: Redox buffer solution
- Country of origin: Switzerland
- Technical Information Sheet:
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Questions about Redox buffer 220mV/pH7, 250mL
What is this article?
Redox buffer 220mV/pH7, 250mL is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in pH buffers & conductivity standards, inside Buffers & pH solutions, in Lab chemicals.
A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Buffers & pH solutions. The sub-category is pH buffers & conductivity standards. The catalogue is Lab chemicals.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
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