Description
Buffer solution pH 4,00 is a ready-to-use calibration buffer supplied in a 500 ml pack for pH electrode adjustment and verification. The nominal pH value of 4 supports routine multi-point or single-point calibration workflows in analytical and quality-control laboratories where an acidic reference point is required. Each batch is accompanied by a factory test certificate in accordance with EN 10204-2.3, documenting the controlled production of the solution. Offered under the WinLab® buffer range from manufacturer Windaus, the product is intended for use with standard laboratory pH meters and combination electrodes. The 0,5 l nominal volume suits bench-top calibration stations and shared instrument pools without frequent bottle changes. Clear labelling of the pH 4,00 value helps operators select the correct buffer during daily setup, method validation, or instrument checks. This buffer solution provides a straightforward acidic calibration standard for laboratories that rely on documented WinLab® pH buffers with EN 10204-2.3 factory certification.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 500 ml
- Product type: pH buffer solution
- pH value: 4,00
- Nominal volume: 0,5 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, 500ml
What is this article?
Buffer solution, pH 4.00, 500ml 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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