1.88052

Water standard 1%

Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O Aquastar^®

Properties

• grado: certified reference material
• Nivel de calidad: 300
• Agency: ISO (17025, 17034)
• Línea del producto: Aquastar^®
• formulario: liquid
• temp. de autoignición: 287 °C (DIN 51794,Information refers to the main component.)
• lim. expl.: 1.7 % (v/v)
• technique(s): Karl-Fischer titration: suitable; titration: suitable
• bp: 119 °C/1013 hPa
• mp: -95 °C
• temperatura de transición: flash point 31 °C (Information refers to the main component.)
• densidad: 0.92 g/cm³ at 20 °C
• formato: single component solution
• temp. de almacenamiento: 15-25°C

Description

Descripción general

Water standard 1% is prepared using high-purity water and reagents by the gravimetric method. Its characterization is carried out at an accredited quality control (QC) laboratory according to DIN EN ISO/IEC 17025. The water content of the standard is measured by direct coulometric Karl Fischer titration, in accordance with ISO 760.

Aplicación

Water standard 1% can be used for:

• Evaluating the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources” as a Certified reference material (CRM)
• Checking the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination”
• Standardizing titrants according to European Pharmacopeia (Ph.Eur.) chapter 2.5.12 “Water Semi-Micro Determination” and the United States Pharmacopeia <921> “Water Determination”
• Titer determinations using volumetric method with one component and two component reagents

Envase

8, 8 mL

8 ml

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Características y beneficios

• Packed in convenient 8 mL glass ampoules and 10 single-use ampoules in a box
• Supplied with a batch-specific certificate of analysis (CoA) having data on the exact measured water content of the batch, uncertainty, method of analysis, the NIST batch, and minimum shelf life
• Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited calibration laboratory
• Directly traceable to SI unit (kg) and verified by SRM 2890 from NIST

Nota de análisis

Assay (H₂O): 9.90 - 10.10 mg/g

Información legal

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

Safety Information

• pictogramas: GHS02,GHS07
• Palabra de señalización: Warning
• Frases de peligro: H226 - H336
• Consejos de prudencia: P210 - P233 - P240 - P241 - P242 - P243
• Clasificaciones de peligro: Flam. Liq. 3 - STOT SE 3
• Órganos de actuación: Central nervous system
• Código de clase de almacenamiento: 3 - Flammable liquids
• WGK: WGK 1
• Punto de inflamabilidad F: 87.8 °F - Information refers to the main ingredient.
• Punto de inflamabilidad C: 31 °C - Information refers to the main ingredient.