Description
Buffer pH=4.01 is a ready-to-use pH calibration solution filled into sealed-edge sachets for convenient single-portion use at the bench or in the field. Each package contains 30 sachets of 20 mL, giving a practical supply for routine electrode and meter checks without opening bulk containers. At 25 °C the buffer is specified at pH 4,01 with an accuracy of ±0,02 pH, providing a defined acidic calibration point for pH sensors. The solution is NIST-traceable and accompanied by a quality certificate, supporting documented measurement chains in analytical and process environments. These sachets from manufacturer Mettler-Toledo OnLine help maintain solution integrity until the moment of use and reduce contamination risk compared with multi-dose bottles. Typical application is the calibration of pH sensors in quality control, research, environmental testing and industrial laboratories. The sealed-edge pouch format simplifies handling and storage, while the fixed 20 mL volume matches common calibration protocols. Package net and gross weight is 0,719 kg. This format suits laboratories that need fresh aliquots, clear pH specification and straightforward traceability for everyday sensor verification and maintenance.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 30 × 20 mL sachets
- pH value: 4,01 (at 25 °C)
- Accuracy: ±0,02 pH
- Traceability: NIST
- Quality certificate: yes
- Technical Information Sheet:
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Questions about Techn. Buffer pH 4.01 sachets 30x20mL
What is this article?
Techn. Buffer pH 4.01 sachets 30x20mL 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 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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