1.88051

Water Standard

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

• 동의어(들): Water standard 0.1% for coulometric Karl Fischer Titration
• UNSPSC 코드: 41115601
• NACRES: NA.24

속성

• 제품명: Water standard 0.1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar^®
• Grade: certified reference material
• Quality Level: 300
• Agency: ISO 17025, 17034
• 제품 라인: Aquastar^®
• 양식: liquid
• autoignition temp.: 287 °C (Information refers to the main component.)
• expl. lim.: 1.7-11.5 % (v/v) Information refers to the main component.)
• 기술: Karl-Fischer titration: suitable; titration: suitable
• bp: 119 °C/1013 hPa
• 전이 온도: flash point 31 °C (Information refers to the main component.)
• density: 0.92 g/cm³ at 20 °C
• 형식: single component solution
• 저장 온도: 15-25°C

설명

일반 설명

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.

애플리케이션

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.

특징 및 장점

• 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

포장

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.

분석 메모

Assay (H₂O): 0.970 - 1.030 mg/g

법적 정보

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

안전성 정보

• 픽토그램: GHS02,GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H226,H336
• 예방조치 성명서: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 3 - STOT SE 3
• 표적 기관: Central nervous system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point (°F): 88.7 °F - closed cup - Information refers to the main ingredient.
• Flash Point (°C): 31.5 °C - closed cup - Information refers to the main ingredient.