Sigma-Aldrich Sodium Hydrogen Carbonate/

Grade

certified reference material

Quality Level

300

Agency

complies with DIN 19266

Product Line

Certipur^®

Application(S)

environmental
food and beverages
general analytical
industrial QC
pharmaceutical

Format

neat

Storage Temp.

15-25°C

Related Categories

Certified Reference Materials

Physical & Chemical Property Standards

General Description

Certipur^®certified secondary standard reference buffers are used to precisely calibrate and monitor pH measurement instruments and buffer solutions. They are quality controlled and qualified in our ISO/IEC 17025 and 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in compliance with DIN 19266, IUPAC, NIST, pH. Eur. and USP. Certipur^®reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.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

Sodium hydrogen carbonate/sodium carbonate [pH(S) = 10.012 (25°C)] is a certified secondary standard reference buffer used as a calibration buffer standard for pH instruments or pH electrodes.

Features And Benefits

• The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing relevant data for the quality management system.
• The pH value of this Certipur^®buffer solution is measured using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary SRM [pH(S) = 10.012 (25 °C)].
• It is a Certified Reference Material (CRM) offered in neat format.
• Intended for extremely precise calibration, qualification and monitoring of pH instruments and for testing other buffer solutions.

Analysis Note

pH-value (25 °C): 10.010 - 10.016CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS07H319P264 - P280 - P305 + P351 + P338 - P337 + P313