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1.07294

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Buffer solution

di-sodium hydrogen phosphate/potassium dihydrogen phosphate, traceable to NIST, traceable to PTB, pH 6.88 (20 °C), Certipur®

Sinonimo/i:

di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer, pH 6.88 calibration standard solution

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About This Item

Codice UNSPSC:
12161706
NACRES:
NA.25

Grado

certified reference material

Livello qualitativo

300

agenzia

traceable to NIST
traceable to PTB

Nome Commerciale

Certipur®

Composizione

di-sodium hydrogen phosphate/potassium dihydrogen phosphate

pH

6.88 (20 °C)

applicazioni

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

Formato

mixture

Temperatura di conservazione

15-25°C

Descrizione generale

Certipur® buffer solution [di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer; pH 6.88 (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.

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.

Caratteristiche e vantaggi

  • Compliant: Produced according to EP and USP guidelines
  • Secure: Tested in our ISO 17025 accredited calibration laboratory
  • Ready for audits: Detailed certificate of analysis for every product
  • Convenient: Simply open the pack for quick, accurate pH calibration

Note legali

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

Codice della classe di stoccaggio

12 - Non Combustible Liquids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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