Application

It is used in analytical procedures for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.

Features and Benefits

Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory Traceable to SRMs from NIST and primary certified reference standards from PTB A ready-to-use solution available in a sealed bottle with convenient packaging to protect against contamination Long-lasting with a shelf life of 3 years Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective audit

General description

The buffer solution (citric acid/sodium hydroxide/hydrogen chloride) is gravimetrically prepared using high-quality reagents in high-purity water. It is quality controlled and qualified in an ISO/IEC 17025 accredited calibration lab. Its pH value of 3.00 at 20°C is qualified using a combined glass electrode following a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266, IUPAC, NIST, USP, and Ph. Eur.

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany