General description
A phosphate buffer, it is gravimetrically prepared using
high-quality salts in high-purity water. The pH 7.00 of this potassium
dihydrogen phosphate/disodium hydrogen phosphate is measured 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.
Please visit ISO certificates and Site Quality Self-Assessments to
access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified
values, including uncertainty and expiry date.
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
- Ready-to-use
solution available in a sealed bottle and an innovative Titripac® packaging
for a positive environmental impact due to reduced waste generation
- Accompanied
with a detailed certificate of analysis (CoA) for an effective audit
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt,
Germany
Titripac is a registered trademark of Merck KGaA, Darmstadt,
Germany
