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1.07205

Supelco

Certified sec. standard reference buffer solution

potassium dihydrogen phosphate/di-sodium hydrogen phosphate, pH 7.41 (25 °C), Certipur®

Synonyme(s) :

pH 7.41 Certified Secondary Buffer Solution

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About This Item

Code UNSPSC :
41116107
Nomenclature NACRES :
NA.25

Qualité

certified reference material

Niveau de qualité

300

Agence

complies with DIN 19266

Gamme de produits

Certipur®

Composition

potassium dihydrogen phosphate/di-sodium hydrogen phosphate

pH

7.41 (25 °C)

Application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

Format

mixture

Température de stockage

15-25°C

Description générale

The certified secondary standard reference buffer solution of potassium dihydrogen phosphate/disodium hydrogen phosphate is gravimetrically prepared using high-quality reagents in high-purity water. Its pH value is analyzed by differential potentiometry with two platinum hydrogen electrodes against primary certified reference materials from NIST & PTB. Also, the pH analysis uses the 5-point calibration method, following 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 can be used for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.

Caractéristiques et avantages

  • Available in solution format in a secure 100 mL high-density plastic bottle
  • Subjected to detailed stability studies as per ISO Guide 35
  • Product label having relevant information on order number, article description, lot number, expiry date and safety data, in accordance with ISO Guide 31
  • Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective quality management system
  • Measured and qualified in ISO/IEC 17025 and ISO 17034 accredited laboratory
  • Traceable to SRMs from NIST and primary certified reference standards from PTB

Remarque sur l'analyse

pH-value: 7.414 - 7.420
For complete data see the enclosed certificate

Informations légales

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

Étalon

Réf. du produit
Description
Tarif

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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