1.09884

Pufferkonzentrat

(citrate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 4.00 ± 0.02 (20°C) Titrisol^®

• Synonym(e): Pufferkonzentrat für 500 ml Pufferlösung, pH 4,00 ± 0,02 (20 °C)
• NACRES: NA.25
• UNSPSC Code: 12161704

Eigenschaften

• grade: analytical standard
• Quality Level: 100
• agency: according to DIN 19266
• product line: Titrisol^®
• pH: 4.0 (20 °C, 50 g/L in H₂O)
• bp: 110 °C
• mp: -6 °C
• density: 1.06 g/cm³ at 20 °C
• application(s): environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• format: mixture
• storage temp.: 15-25°C

Beschreibung

General description

The Titrisol^® reference buffer concentrate [citrate/hydrochloric acid; pH=4.00±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.

Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search  to view certified values, including uncertainty and expiry date.

Application

Das Pufferkonzentrat kann als Standardpuffer zur Kalibrierung von pH-Messgeräten verwendet werden, um genaue pH-Messungen zu gewährleisten.

Features and Benefits

• Rückführbar auf Primärstandardreferenzmaterialien von NIST und PTB
• In Analytischer-Standard-Qualität
• Unsicherheitsdaten und Rückführbarkeit werden in einem umfassenden und chargenspezifischen Analysezertifikat dokumentiert.

Analysis Note

pH-Wert (20  °C): 4,00 +/- 0,02
Gemessen nach Verdünnung auf 500 mL mit einer Glas-Einstabmesskette nach Mehrpunktkalibrierung (nach DIN 19268) mit Referenzmaterialien für die Herstellung von Standardpufferlösungen nach DIN 19266.

Other Notes

Please visit Physical & Chemical Property Standards to explore a wide selection of standards and certified reference materials (CRMs) for many tests parameters.

In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website.

Legal Information

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

Sicherheitshinweise

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