Description
Buffer solution pH 4,01 is a standard-quality calibration buffer designed for accurate pH meter and electrode verification. It delivers a target value of pH 4,01 with an accuracy of ±0,01, providing a reliable acidic reference for laboratory and process measurement systems. The pack comprises 25 foil sachets of 20 ml each, enabling single-use portions that reduce the risk of contamination and avoid the handling drawbacks of open bulk containers. Traceability is referenced to NIST standards, supporting consistent calibration practice across analytical workflows. Supplied from manufacturer Hanna Instruments, this buffer is suited to routine checks, electrode conditioning verification and day-to-day meter adjustment in research, industrial and quality-control settings. Operators open only the sachet needed for each session, helping maintain solution freshness until use. Net weight is 0,65 kg and gross weight is 1,65 kg. Country of origin is Romania. The convenient sachet presentation and defined accuracy make this pH 4,01 buffer a practical standard for laboratories that require dependable, ready-to-use calibration media.
This article belongs on pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 25 sachets of 20 ml
- pH value: 4,01
- Accuracy: ±0,01 pH
- Quality grade: standard
- Traceability: NIST
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Questions about 4.01 pH Value @25°C, (25) 20 mL sachets
What is this article?
4.01 pH Value @25°C, (25) 20 mL sachets 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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