The pH buffer solution for calibration - XS Basic pH 7 /25°C (green) - 250 ml from the GIORGIO BORMAC brand is an essential product for the precise calibration of your pH measuring instruments. This buffer solution, part of the XS Green Line, is supplied in a practical dispensing bottle with an integrated calibration compartment, ensuring ease of use and accuracy.

Main Features

• Accuracy: ± 0.02


• Certificate: Yes, downloadable for free from the website giorgiobormac.com


• Color: Green


• Composition: Potassium dihydrogen phosphate (CAS 7778-77-0), disodium hydrogen phosphate dihydrate (CAS 10028-24-7), green dye


• Packaging: 250 ml with integrated calibration compartment


• Description: ±0.02 / 25°C - Green


• Name: pH 7


• Nominal value: pH 7 @ 25 °C


• Volume: 250 ml

Traceability and Reliability

XS buffer solutions are traceable to the IUPAC pH scale, thanks to an unbroken chain of comparisons directly to NIST Standard Reference Materials. Each solution is accompanied by an Analysis Certificate from the internal Giorgio Bormac laboratory, ensuring quality, traceability, and accuracy. You can download the certificate directly from the website: Download Certificates.

Everyday Use

This buffer solution is ideal for daily use in checking the sensors and calibrations of your pH measuring instruments. Its carefully balanced composition and certified traceability ensure reliable and repeatable results, essential for scientific, industrial, and laboratory applications.

Why Choose the XS Basic pH Buffer Solution?

Choosing the XS Basic pH buffer solution means opting for a high-quality product, backed by a trusted brand such as GIORGIO BORMAC. With an accuracy of ± 0.02 and guaranteed traceability, this solution is perfect for those who need precise and reliable calibrations.

Product Benefits

• Ease of use thanks to the dispensing bottle with integrated calibration compartment


• Analysis certificate available for free download


• High precision and reliability


• Safe and traceable chemical composition


• Ideal for scientific and industrial applications

Make sure your pH measuring instruments are always accurate and reliable with the pH buffer solution for calibration - XS Basic pH 7 /25°C (green) - 250 ml from GIORGIO BORMAC.