General description
The buffer solution (citric acid/sodium hydroxide/hydrogen
chloride) is gravimetrically prepared using high-quality reagents and quality
controlled and qualified in an ISO/IEC 17025 accredited calibration lab. Its pH
value of 2.00 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.
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 involving 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 positive environmental impact due to reduced waste generation
- Long-lasting
with a shelf life of 3 years
- Accompanied
with a detailed and batch-specific 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
