Aquastar® Water Standards in Ampoules

The Aquastar range offers water standards in ampoules with different water contents. Our standards consist of solvent mixtures with a clearly defined water content. They are tested against standard reference material from NIST (National Institute of Standards and Technology, Gaithersburg, USA), and each package contains a batch-specific certificate with the exact measured water content of the batch, uncertainty data, measuring method, the NIST batch, and minimum shelf-life.

Water standard 1% is recommended for the use of titer determination for the volumetric method with both one and two component reagents. The 0.01% and 0.1% water standards are used for the coulometric method.
 

Materials

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