At the sites of the Austrian monitoring network, regular sampling of ground and surface water has been undertaken, as well as analysis for a wide range of inorganic and organic parameters, since the early 1990s. The water quality monitoring results are published on the website of the Environment Agency Austria (Umweltbundesamt GmbH). The Centre for Analytical Chemistry of IFA-Tulln has organised regular interlaboratory comparisons for external quality assurance of water analysis on behalf of the Federal Ministry of Sustainability and Tourism since 1995. This proficiency testing scheme covers a wide range of inorganic and organic parameters and any laboratory can participate.
The Austrian Accreditation Body at the Federal Ministry for Digital and Economic Affairs recognises participation in this proficiency testing system as proof of the analytical competence of accredited testing laboratories.Up to now, synthetic water samples have been used as test samples, with concentrations comparable to natural waters.
Cooperation IFA-Tulln - Environment Agency Austria (Umweltbundesamt GmbH)
Since 2013, interlaboratory comparisons with natural samples (ground, surface, waste and drinking water, partly spiked) have been on offer covering nearly all parameter groups. This service is possible as a result of the cooperation between IFA-Tulln and the Umweltbundesamt GmbH's accredited testing laboratory for environmental, GMO & fuel analysis.
Interlaboratory comparisons with natural water samples
Registration is processed by the IFA-Tulln. For each interlaboratory comparison, two water samples
of different concentrations are dispatched by the Umweltbundesamt GmbH. The homogeneity
and stability of the samples are checked as a matter of course. For this purpose, test
measurements are carried out before dispatching the samples and on the closing date
for result submission. Clear and anonymous test results - which are common practice with
interlaboratory comparisons using synthetic water samples - will be provided swiftly also
for natural water samples, including z-Scores and confirmation of participation.
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