General description
The boric acid/potassium chloride/sodium hydroxide buffer
solution is gravimetrically prepared using high-quality reagents in high-purity
water. It is produced, calibrated, and certified at a registered laboratory
according to DIN EN ISO/IEC 17025. Its pH value of 10.00 at 20°C is analyzed
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
The buffer solution finds its use in various analytical
procedures to calibrate, qualify, and monitor the pH measuring instruments.
Features and Benefits
- Ready-to-use
solution available in a sealed bottle and the 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
- Subjected
to comprehensive stability studies in accordance with ISO Guide 35
- 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
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt,
Germany
Titripac is a registered trademark of Merck KGaA, Darmstadt,
Germany
