1.88052

Water Standard

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

• 別名: Water standard 1% for volumetric Karl Fischer Titration
• UNSPSCコード: 41115601
• NACRES: NA.24

特性

• product name: Water standard 1%, Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O 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: liquid
• 自己発火温度: 287 °C (DIN 51794,Information refers to the main component.)
• expl. lim.: 1.7 % (v/v)
• テクニック: Karl-Fischer titration: suitable; titration: suitable
• bp: 119 °C/1013 hPa
• mp: -95 °C
• 転移温度: flash point 31 °C (Information refers to the main component.)
• 密度: 0.92 g/cm³ at 20 °C
• フォーマット: single component solution
• 保管温度: 15-25°C

詳細

詳細

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.

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 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

特徴および利点

• 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

包装

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 SmartChemicals for Titration.

アナリシスノート

Assay (H₂O): 9.90 - 10.10 mg/g

法的情報

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

安全性情報

• ピクトグラム: GHS02,GHS07
• シグナルワード: Warning
• 危険有害性情報: H226 - H336
• 注意書き: P210 - P233 - P240 - P241 - P242 - P243
• 危険有害性の分類: Flam. Liq. 3 - STOT SE 3
• ターゲットの組織: Central nervous system
• 保管分類コード: 3 - Flammable liquids
• WGK: WGK 1
• 引火点(°F): 87.8 °F - Information refers to the main ingredient.
• 引火点(℃): 31 °C - Information refers to the main ingredient.