Non disponible en dehors du Royaume-Uni et de l'Irlande
Analysis Note
pH-value: 6.861 - 6.867For complete data see the enclosed certificate
Application
The buffer solution can be used to calibrate, qualify, and monitor pH measuring instruments and as a control for testing other buffer solutions.
Features and Benefits
Available in a sealed 100 mL high-density plastic bottle Subjected to detailed stability studies as per ISO Guide 35 Product label carryies 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 an ISO/IEC 17025 and ISO 17034 accredited laboratory Traceable to SRMs from NIST and primary certified reference standards from PTB
General description
The certified secondary standard reference buffer solution (potassium dihydrogen phosphate/di-sodium hydrogen phosphate) is gravimetrically prepared using high-quality reagents in high-purity water. Its pH value is measured by differential potentiometry with two platinum hydrogen electrodes against primary certified reference materials from NIST & PTB. It is qualified using a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266.
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Ce produit répond aux critères suivants pour être admissible aux récompenses suivantes :