Description
Buffer solution pH 4,01 is a standard-quality aqueous buffer prepared for pH meter and electrode calibration at the acidic reference point of pH 4,01. It offers a stated accuracy of ±0,01 pH, supporting routine laboratory calibration where a reliable, well-defined buffer value is required. The solution is colour-coded red so that the correct standard can be identified quickly on the bench or in shared instrument areas. It is supplied in a sturdy plastic canister of 3,78 L (1 US gallon), a pack size suited to higher sample throughput, multi-instrument laboratories and teaching facilities that need larger working volumes. Traceability is referenced to NIST, which assists quality systems that document calibration materials against recognised standards. This buffer from manufacturer Hanna Instruments is intended for everyday pH calibration workflows in analytical chemistry, quality control, environmental testing and process laboratories. The single-piece unit arrives ready for use, with a net weight of 3,91 kg and a gross weight of 4,91 kg, making handling and storage straightforward in typical laboratory environments.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 3,78 L plastic canister (1 US gallon)
- pH value: 4,01
- Accuracy: ±0,01 pH
- Colour coding: red
- Traceability: NIST
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Questions about 4.01 pH Value @25°C, 1?llon (3.78 L) bottle
What is this article?
4.01 pH Value @25°C, 1?llon (3.78 L) bottle is the article on this page. Luminix Health distributes Hanna Instruments 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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