제품 이름
Water Standard 0.01 %, Reference Material for coulometric Karl Fischer Titration 1 g ≙ 0.1 mg H2O Aquastar®
grade
reference material
Quality Segment
agency
ISO 17025
vapor pressure
10 hPa ( 20 °C)
product line
Aquastar®
form
liquid
autoignition temp.
465 °C
expl. lim.
1.7-7.5 % (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
137 °C/1013 hPa
mp
-34 °C (xylene)
transition temp
flash point 25 °C
solubility
0.2 g/L
density
0.86 g/mL at 20 °C
format
single component solution
storage temp.
15-25°C
General description
The 0.01% water standard is gravimetrically prepared 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.
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.
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.
Application
It is used as a reference material 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”.
Features and Benefits
- Packed in convenient 8 mL glass ampules. Each box contains 10 single-use ampules
- Supplied with a batch-specific digital 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 accredited laboratory
- Directly traceable to SI unit (kg) and verified by secondary reference standards 2890 from NIST
- Shelf life of 18 months
Packaging
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.
Analysis Note
Assay (H₂O): 0.090 - 0.110 mg/g
Legal Information
AQUASTAR is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
저장 등급
3 - Flammable liquids
wgk
WGK 2
flash_point_f
77.0 °F
flash_point_c
25 °C
target_organs
Central nervous system,Liver,Kidney, Respiratory system