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Water standard 0.1%

Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®


certified reference material

Nivel de calidad


ISO 17025, 17034

Línea del producto




temp. de autoignición

287 °C (Information refers to the main component.)

lim. expl.

1.7-11.5 % (v/v) Information refers to the main component.)


Karl-Fischer titration: suitable
titration: suitable


119 °C/1013 hPa

temperatura de transición

flash point 31 °C (Information refers to the main component.)


0.92 g/cm3 at 20 °C


single component solution

temp. de almacenamiento


Descripción general

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.


8 mL in ampules
8 ml
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


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.

Características y beneficios

  • 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

Nota de análisis

Assay (H₂O): 0.970 - 1.030 mg/g

Información legal

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


FlameExclamation mark

Palabra de señalización


Frases de peligro

Clasificaciones de peligro

Flam. Liq. 3 - STOT SE 3

Órganos de actuación

Central nervous system

Código de clase de almacenamiento

3 - Flammable liquids



Punto de inflamabilidad F

87.8 °F - Information refers to the main ingredient.

Punto de inflamabilidad C

31 °C - Information refers to the main ingredient.

Certificate of Analysis

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Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

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