1.88054

Water Standard

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

• 別名: TM=["AQUASTAR"] Water Standard Oven 1% for KF oven method
• UNSPSCコード: 41115601
• NACRES: NA.24

特性

• product name: Water Standard Oven 1%, Certified Reference Material for KF oven method Aquastar^®
• グレード: certified reference material
• 品質水準: 300
• 認証: ISO 17025, 17034
• 製品種目: Aquastar^®
• 形状: solid
• テクニック: Karl-Fischer titration: suitable; titration: suitable
• かさ密度: 460 kg/m³
• フォーマット: neat
• 保管温度: 15-25°C

詳細

詳細

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.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

アプリケーション

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.

特徴および利点

• 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)

関連事項

Replaces: 1.88054.0005

法的情報

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

安全性情報

• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable