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1.01645

Supelco

Buffer solution

(di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) Certipur®

Synonyme(s) :

TM=["CERTIPUR"] buffer solution, di-sodium tetraborate buffer, pH 9.22 Buffer solution

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About This Item

Code UNSPSC :
12161705
Nomenclature NACRES :
NA.25

Qualité

certified reference material

Niveau de qualité

300

Gamme de produits

Certipur®

pH

9.2 (25 °C in H2O)

Point d'ébullition

100 °C/1013 hPa

Densité

1.00 g/cm3 at 20 °C

Application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

Format

mixture

Température de stockage

15-25°C

Description générale

The ready-to-use Certipur® buffer solutions are prepared gravimetrically in our ISO/IEC 17025 accredited calibration laboratory from high-purity salts, acids and bases diluted in high-purity water. All balances are regularly calibrated with analytical weight sets traceable to primary standard reference materials from NIST and PTB. The pH value is measured to the highest precision using a combined glass electrode after 5-point calibration (according to DIN 19268) against reference buffer solutions (according to DIN 19266, IUPAC, NIST, Ph.Eur. and USP).

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

Certipur® buffer solution (di-sodium tetraborate buffer; pH 9.22 at 20 °C) is intended for use as a calibration standard for pH instruments or pH electrodes or as a control sample for measuring the pH value.

Caractéristiques et avantages

  • The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing the relevant data for the quality management system.
  • It is a Certified Reference Material (CRM) offered in solution format.
  • Intended for extremely precise calibration, qualification and monitoring of pH instruments and for testing other buffer solutions.

Informations légales

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

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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