Description
Buffer solution pH 4,00 is a ready-to-use laboratory reference standard supplied in a 1000 ml pack for calibration and verification of pH measuring systems. This WinLab® buffer is prepared to a nominal pH of 4,00 and supports routine adjustment of pH meters, glass electrodes and multiparameter instruments in analytical, quality-control and research laboratories. The 1 l nominal volume is practical for frequent bench-top calibration cycles and shared instrument stations. Each solution is accompanied by a factory test certificate according to EN 10204-2.3, giving documented batch information for traceable laboratory practice. Offered under the WinLab® range from manufacturer Windaus, the buffer fits standard aqueous pH workflows without further preparation. Laboratories rely on defined pH 4,00 points when establishing calibration curves, checking electrode slope and confirming instrument performance before sample measurement. The clear liquid format pours easily into calibration vessels or electrode holders. Suitable for educational, industrial and routine laboratory environments where a stable acidic reference buffer is required for consistent pH control.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 1000 ml
- Product type: Buffer solution
- pH value: 4,00
- Nominal volume: 1 l
- Brand: WinLab®
- Certificate: Factory test certificate EN 10204-2.3
- Technical Information Sheet:
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Questions about Buffer solution, pH 4.00, 1000ml
What is this article?
Buffer solution, pH 4.00, 1000ml is the article on this page. Luminix Health distributes Windaus 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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