Neomeris pH buffer solution pH 4.01

The Neomeris pH buffer solution, with a pH value of 4.01, is ideal for calibrating pH electrodes and ensures reliable and reproducible measurement results. The bottle is easy to handle and features a hygienic cap that protects against contamination.

This high-quality pH buffer solution with a defined value of pH 4.01 ± 0.01 at 25 °C is ideal for calibrating your pH electrodes in laboratories, industry and environmental analysis. It ensures reliable and reproducible measurement results – a must for any professional pH measurement.

Innovative 500 ml bottle with hygienic cap

The solution is supplied in a specially developed 500 ml bottle fitted with a special hygienic cap. This effectively protects the buffer solution from contamination and makes it particularly easy to use:

Simply squeeze – ready for calibration!

Gently squeezing the bottle dispenses a sufficient amount of buffer solution into the upper section – perfectly metered for direct calibration of your electrode, with no need for additional accessories and no risk of contamination.

Product benefits at a glance:

• Exact pH value: 4.01 ± 0.01 at 25°C
• Practical 500 ml bottle with dispensing function
• Hygienic cap protects against contamination
• Ideal for laboratories, industry and environmental analysis
• Compatible with all standard pH meters

Tip: For precise multi-point calibration, we recommend combining this with other buffer solutions (e.g. pH 7.00 and pH 10.00).

What is a pH 4.01 buffer solution used for?

A pH 4.01 ± 0.01 (25 °C) buffer solution, 500 ml, is used for the calibration and control of pH meters in the acidic range.

It is required: For 2- or 3-point calibration (e.g. together with pH 7.00 and pH 9/10). When measuring samples in the acidic range (pH < 7).

Typical applications: food analysis (e.g. juices, wine), environmental analysis (soil or water samples), industrial processes involving acidic solutions, and in laboratories.

A pH meter measures most accurately in the range in which it has been calibrated – therefore, pH 4.01 is important for precise measurements in an acidic environment.

What do the details on the bottle mean?

pH 4.01

This is the exact target pH value of the buffer solution at the reference temperature. The chemical composition keeps this value stable.

± 0.01

This is the very narrow tolerance. The actual pH value is at most 0.01 pH units above or below 4.01 (i.e. between 4.00 and 4.02). This demonstrates the high accuracy of the solution.

(25 °C)

The specified pH value applies precisely at 25 °C, as the pH value is temperature-dependent. Measuring instruments take this into account via temperature compensation.

500 ml

This is the volume of the solution. The solution is used for the precise calibration of a pH meter in the acidic range, whereby 4.01 at 25 °C is the exact reference value with a very small deviation of ± 0.01.

Neomeris – For precise pH measurements in everyday use

When calibrating your measuring instruments, rely on quality, safety and convenience – with Neomeris’ colour-coded, ready-to-use buffer solutions.

With its practical 500 ml bottle and hygienic dosing system, the Neomeris calibration solution is particularly well suited for regular use in professional environments. Trust in quality, precision and ease of use – for reliable measurement results, day after day.