1.09885

Buffer concentrate

(citrate/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 5.00 ± 0.02 (20°C) Titrisol^®

• NACRES: NA.25
• UNSPSC Code: 12161704

Properties

• grade: analytical standard
• Quality Segment: 100
• agency: according to DIN 19266
• product line: Titrisol^®
• pH: 5.00 (20 °C in H₂O)
• density: 1.14 g/cm³ at 20 °C
• application(s): environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• format: mixture
• storage temp.: 15-25°C

Description

General description

The Titrisol^® reference buffer concentrate [citrate/sodium hydroxide; pH=5.00±0.02 (20 °C)] is analyzed in the ISO/IEC 17025 accredited calibration laboratory with a combined glass electrode and 5-point calibration according to DIN 19268 against a certified primary standard reference material following DIN 19266.

The Titrisol^® concentrated buffer material combines ease of use and maximum precision for the routine calibration and monitoring of pH instruments. To prepare the ready-to-use pH buffer solution, simply dilute the Titrisol^® buffer concentrate.

Features and Benefits

• Traceable to primary standard reference materials from NIST and PTB
• Analytical standard Grade
• Uncertainty data and traceability are documented in a comprehensive and batch-specific Certificate of Analysis.

Analysis Note

pH-value (20 °C): 5.00 +/- 0.02
Measured after dilution to 500 ml with a combination glass electrode after multiple point calibration (according to DIN 19268) with reference materials for the preparation of standard buffer solutions according to DIN 19266.

Legal Information

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

Safety Information

• Storage Class: 12 - Non Combustible Liquids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable