Description
Redox buffer solution UH=427 mV / 220 mV is supplied as a multipack of six 250 ml bottles for efficient calibration and verification of redox (ORP) electrodes. The defined millivolt values support routine checks of sensor slope and instrument performance in laboratory, pilot-plant, and process environments. The 6 × 250 ml format is practical for higher-throughput sites, shared instrument parks, or facilities that prefer sealed single bottles for each calibration series while keeping stock on hand. Individual bottles remain easy to handle at the bench or beside online measuring points. Offered by manufacturer Mettler-Toledo OnLine, this redox buffer solution serves water and wastewater laboratories, chemical production, environmental monitoring, and quality-control teams that rely on stable oxidation–reduction potential references. Use a fresh portion for each verification according to the electrode and meter manufacturer’s procedure, and store unused bottles closed until required so that the stated UH and mV values remain available for consistent electrode maintenance across multiple workstations.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 6 × 250 ml
- Redox values: UH=427 mV / 220 mV
- Product type: Redox buffer solution
- Country of origin: Switzerland
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Questions about Redox buffer 220mV/pH7, 6 x 250mL
What is this article?
Redox buffer 220mV/pH7, 6 x 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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