Description
Buffer solution pH 7,00 ±0,01 (20 °C) is a ROTI®Star calibration and measurement buffer for laboratory pH-value determination. The stated set-point of pH 7,00 with a tolerance of ±0,01 at 20 °C supports precise electrode calibration and verification around neutral conditions. Physical data include a density of 1 g/cm³ and a boiling point of 100 °C, which align with aqueous buffer handling in routine analytical work. This buffer comes from manufacturer Carl ROTH within the ROTI®Star line used for determination of physical properties and pH measurement. Neutral reference buffers are central to maintaining meter accuracy before sample readings in quality control, teaching and research environments. The defined temperature basis of 20 °C allows operators to match calibration conditions to method requirements. Plastic packaging reduces breakage risk during daily use while providing a practical working volume. Laboratories specifying pH 7,00 ±0,01 buffers can integrate this article directly into standard operating procedures for meter setup, intermediate checks and documented pH-value determination workflows.
This article belongs on pH buffers & conductivity standards, in Buffers & pH solutions.
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What is this article?
Buffer solution pH 7,00 ±0,01 (20 °C), ROTI®Star, 500 ml, plastic is the article on this page. Luminix Health distributes Carl Roth 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).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

