1.88054

Water Standard

1%, Certified Reference Material for KF oven method Aquastar^®

• Sinonimo/i: Acqua standard fornetto 1% per metodo con fornetto KF TM=["AQUASTAR"]
• Codice UNSPSC: 41115601
• NACRES: NA.24

Proprietà

• product name: Acqua standard fornetto 1%, Certified Reference Material for KF oven method Aquastar^®
• Grado: certified reference material
• Livello qualitativo: 300
• agenzia: ISO 17025, 17034
• Nome Commerciale: Aquastar^®
• Forma fisica: solid
• tecniche: Karl-Fischer titration: suitable; titration: suitable
• Densità bulk: 460 kg/m³
• Formato: neat
• Temperatura di conservazione: 15-25°C

Descrizione

Descrizione generale

It is a solid standard prepared gravimetrically from high-purity reagents. The water content of it is determined by coulometric Karl Fischer oven method at 170°C with an extraction time of 600 seconds following ISO 760. Additionally, its measured water content is verified by thermogravimetric analysis. Unlike other solid standards such as tartrate, lactose, or citrate, the water standard oven 1% has significantly lower water content and can be used over a broad temperature range of 150°C to 400°C due to its inorganic composition. It is characterized in accredited quality control (QC) laboratory according to DIN EN ISO/IEC 17025.

Per avere accesso ai certificati di accreditamento attuali, siete pregati di visitare la pagina Certificazioni ISO e autovalutazioni della qualità delle sedi
Per prendere visione dei parametri certificati, compresa l′incertezza e la data di scadenza, potete scaricare il vostro certificato da http://www.sigma-aldrich.com.

Applicazioni

Water standard oven 1% is used as certified reference material to check the accuracy of coulometric and volumetric water determinations, according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources”, using Karl Fischer oven and thermobalances. But its low water content of 1% makes it particularly suitable for water determinations using Karl Fischer oven with a coulometer.

Caratteristiche e vantaggi

• Packed in convenient glass bottles with the material subjected to stability and homogeneity studies following ISO 17034 and ISO Guide 35
• Supplied with a batch-specific certificate of analysis (CoA) having data on exact measured water, uncertainty, method of analysis, measuring method, and minimum shelf life
• Characterized in an ISO/IEC 17025 and ISO 17034 accredited calibration laboratory
• Directly traceable to SI unit (kg)

Linkage

Sostituisce: 1.88054.0005

Note legali

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable