1.07827

Buffer solution

(acetic acid/sodium acetate) traceable to SRM from NIST and PTB pH 4.66 (20°C) Certipur^®

• Sinónimos: Buffer solution pH 4.66
• Código UNSPSC: 12161704
• NACRES: NA.25

Propiedades

• grado: certified reference material
• Nivel de calidad: 300
• Línea del producto: Certipur^®
• pH: 4.7 (20 °C in H₂O)
• densidad: 1.00 g/cm³ at 20 °C
• aplicaciones: environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• Formato: mixture
• temp. de almacenamiento: 15-25°C

Descripción

Descripción general

Also known as an acetate buffer, it is prepared gravimetrically with acetic acid, sodium acetate, and high-purity water. This acetic acid/sodium acetate buffer is analyzed using a combined glass electrode following a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266.

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Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Aplicación

The buffer solution is used in analytical procedures for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.

Características y beneficios

• Measured and qualified in a ISO/IEC 17025 and ISO 17034 accredited laboratory
• Traceable to SRMs from NIST and primary certified reference standards from PTB
• Ready-to-use solution available in a sealed bottle with convenient packaging to protect against contamination
• Long-lasting with a shelf life of 3 years
• Accompanied with a detailed certificate of analysis (CoA) for an effective audit

Información legal

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

Información de seguridad

• Código de clase de almacenamiento: 12 - Non Combustible Liquids
• Clase de riesgo para el agua (WGK): nwg
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable