Description
pH/EC calibration solution set (pH 7,00, 4,01, 1413 µS, 12,88 mS) comprises four calibration standards supplied at 250 ml each for accurate adjustment of combined pH and electrical conductivity instruments. The set includes pH buffer solutions at pH 7,00 and pH 4,01 together with conductivity reference solutions of 1413 µS and 12,88 mS, covering the most frequently used calibration points for multiparameter meters. Offered as one complete set, these solutions enable multi-point calibration workflows in water analysis, environmental monitoring, aquaculture and industrial quality control. Prepared for immediate use, the liquids from manufacturer APERA Instruments help operators verify sensor response across both pH and conductivity ranges before critical measurements. Each 250 ml bottle provides ample volume for numerous calibration procedures while remaining convenient for laboratory storage and handling. Consistent use of defined pH and conductivity standards is fundamental to obtaining reliable analytical data; this set delivers the required reference values in a practical multi-bottle format. The solutions are suitable for portable and laboratory pH/EC meters that accept liquid calibration standards of these nominal values.
This article belongs on pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 1 set
- Product type: pH/EC calibration solution set
- pH buffers: pH 7,00 and pH 4,01
- Conductivity standards: 1413 µS and 12,88 mS
- Volume per bottle: 250 ml
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Questions about pH/EC Calibration Solution Set (pH 7.00, 4.01, 1413 µS, 12,88 mS), each 250ml
What is this article?
pH/EC Calibration Solution Set (pH 7.00, 4.01, 1413 µS, 12,88 mS), each 250ml is the article on this page. Luminix Health distributes APERA 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).
What should I check before I order?
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.

