Beschreibung
Buffer solution pH 4.01 is a ready-to-use acidic calibration standard for precise pH meter and electrode verification. Specified at pH 4,01, it provides a defined low-pH reference point widely used in two-point and multi-point calibration of glass electrodes, benchtop meters and portable instruments. Supplied as a single 250 ml bottle, the format is convenient for routine laboratory calibration, method checks and quality-control sequences. Net weight is 0,299 kg, with a gross weight of 1,78 kg for the packed unit. This buffer comes from manufacturer Mettler-Toledo OnLine and forms part of a familiar family of pH buffer solutions applied across analytical, environmental and life-science laboratories. A stable acidic standard helps confirm slope and offset behaviour of pH sensors and supports consistent measurement performance in aqueous samples. The compact 250 ml volume suits individual workstations while remaining practical for shared instrument parks. Use it together with neutral and alkaline buffers whenever a full calibration curve is required.
This article belongs on pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 250 ml
- pH value: 4,01
- Country of origin: Switzerland
- Product type: pH buffer solution
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pH buffers & conductivity standards
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Labor- und Industriechemikalien
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Questions about Certified buffer pH 4.01, 250mL
What is this article?
Certified buffer pH 4.01, 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 Labor- und Industriechemikalien.
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 Labor- und Industriechemikalien.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
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