Description
L 4790 is a sterilised DIN buffer solution set filled in FIOLAX® ampoules and packed as 2 × 30 ampoules for the calibration points pH 4,01 and pH 6,87. These DIN buffer values are widely used for precise adjustment and verification of pH electrodes and meters in analytical and quality-control laboratories. Each ampoule remains sealed until opened, delivering a fresh, contamination-controlled portion of buffer. The set includes a manufacturer certificate to support traceable documentation of the reference solutions. Net weight of the complete set is 2,35 kg. Designed for routine two-point calibration sequences, the dual-pH format reduces the need to stock separate single-value buffers. Produced by SI Analytics - a Xylem brand, L 4790 suits research, industrial and service laboratories that specify sterilised DIN buffers in high-quality FIOLAX® glass ampoules. The ampoule presentation is practical for shared workstations and for procedures where hygienic, single-use aliquots are preferred over open multi-use containers.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 2 × 30 ampoules (1 set)
- Product type: L 4790
- pH values: 4,01 / 6,87 (DIN)
- Ampoule glass: FIOLAX®
- Sterilisation: sterilised
- EAN: 4064664026062
- Technical Information Sheet:
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Questions about L 4790, Buffer solution in FIOLAX® ampoules 2 x 30 ampoules, DIN buffer solution
What is this article?
L 4790, Buffer solution in FIOLAX® ampoules 2 x 30 ampoules, DIN buffer solution is the article on this page. Luminix Health distributes SI Analytics - a Xylem brand 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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