1.88052
Water standard 1%
Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H2O Aquastar®
동의어(들):
Water standard 1% for volumetric Karl Fischer Titration
제품 이름
Water standard 1%, Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H2O Aquastar®
grade
certified reference material
agency
ISO (17025, 17034)
product line
Aquastar®
form
liquid
autoignition temp.
287 °C (DIN 51794,Information refers to the main component.)
expl. lim.
1.7 % (v/v)
reaction suitability
reaction type: water standard for Karl Fischer titration
packaging
ampule of 10 × 8 mL
technique(s)
Karl-Fischer titration: suitable
titration: suitable
bp
119 °C/1013 hPa
mp
-95 °C
transition temp
flash point 31 °C (Information refers to the main component.)
density
0.92 g/cm3 at 20 °C
format
single component solution
Quality Level
Analysis Note
Application
- 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
Features and Benefits
- Packed in convenient 8 mL glass ampoules and 10 single-use ampoules in a box
- Supplied with a batch-specific digital certificate of nalysis (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
General description
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.
Packaging
Legal Information
signalword
Warning
hcodes
Hazard Classifications
Flam. Liq. 3 - STOT SE 3
target_organs
Central nervous system
저장 등급
3 - Flammable liquids
wgk
WGK 1
flash_point_f
87.8 °F - Information refers to the main ingredient.
flash_point_c
31 °C - Information refers to the main ingredient.
시험 성적서(COA)
제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.
문서
Methods including internal extraction, external extraction, and Karl Fischer oven ensure accurate water content determination by titration.
SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.
프로토콜
This protocol describes a one-component Volumetric Karl Fischer Titration method for the determination of water content in Benserazide hydrochloride.
Foodstuffs often provide a challenge for the water determination by Karl-Fischer. Instant Coffee is such a sample matrix and its water content has influence on quality and shelf life.
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 1.88052.0010 | 04022536769608 |
| 1.88052.0013 | 04054839714788 |
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