1.88051

Water standard 0.1%

Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 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 (Information refers to the main component.)
• lim. expl.: 1.7-11.5 % (v/v) Information refers to the main component.)
• technique(s): Karl-Fischer titration: suitable; titration: suitable
• bp: 119 °C/1013 hPa
• 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

The 0.1% water standard is prepared gravimetrically from high-purity water and reagents. Its characterization is performed 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 following ISO 760.

Envase

8 mL in ampules

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

Aplicación

It is used as a certified reference material (CRM) to verify the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources”. It can also be used to check the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination.” Although preferable for use in coulometric method, it can be used to verify the low water content by volumetric method.

Características y beneficios

• Packed in convenient 8 mL glass ampoules with 10 single-use ampoules in a box
• Supplied with a batch-specific certificate of analysis (CoA) having data on 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 laboratory
• Directly traceable to SI unit (kg) and verified by SRM 2890 from NIST

Nota de análisis

Assay (H₂O): 0.970 - 1.030 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.