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Production of pH buffer solutions in the accredited laboratory of Endress+Hauser

Accredited pH buffer production

Reliable results you can count on

Endress+Hauser has successfully passed the tough accreditation process of the German Accreditation Service (DAkkS) in accordance with the specifications of DIN EN ISO/IEC 17025:2005. Our accredited calibration laboratory for pH buffers meets the highest customer requirements and guarantees the reliability of your pH measurements.

pH buffer solutions to meet the highest demands

The accuracy of a pH measuring point is rooted in achieving the right calibration with pH buffer solutions. Endress+Hauser produces pH buffer solutions for the most stringent requirements, which are specified with the actual value and an accuracy rating of ±0.02 pH. Our buffers are traceable to standard reference material of NIST (USA) and PTB (Germany), and contain only FDA-listed preservative agents. To prove the high buffer quality, we regularly participate in international round-robin tests.

Certified pH buffer production

DAkkS has certified our complete buffer production and granted a calibration license to our own pH calibration laboratory in Waldheim, Germany (DAkkS accreditation number: D-K-15193). The accreditation confirms that the actual values and deviations of the buffer solutions produced are determined correctly. Furthermore, we are allowed to provide certification for all produced pH buffers, aiming to simplify audit trails and improve the reliability of Standard Operation Procedures (SOPs).

  • ©Endress+Hauser
  • ©Endress+Hauser
  • ©Endress+Hauser
  • ©Endress+Hauser
  • ©Endress+Hauser


Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24 70839 Gerlingen Germany
Tel.: +49 7156 209 0
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