1.88051

Water Standard

0.1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar^®

• 別名: Water standard 0.1% for coulometric Karl Fischer Titration
• UNSPSCコード: 41115601
• NACRES: NA.24

特性

• product name: Water standard 0.1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 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 (Information refers to the main component.)
• expl. lim.: 1.7-11.5 % (v/v) Information refers to the main component.)
• テクニック: Karl-Fischer titration: suitable; titration: suitable
• bp: 119 °C/1013 hPa
• 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

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.

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

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.

特徴および利点

• 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

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 www.sigmaaldrich.com/SmartChemicals.

アナリシスノート

Assay (H₂O): 0.970 - 1.030 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): 88.7 °F - closed cup - Information refers to the main ingredient.
• 引火点(℃): 31.5 °C - closed cup - Information refers to the main ingredient.