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Potable water
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In order to reduce the risk of damages caused to health, drinking water is tested
for existence of dengerous substances of content on a regular basis.
World Health Organisation (WHO) provides worldwide standards for these kinds of
analysis and measurements. Standards have been accepted by the European Commission
as in regulation 98/83/EG. The list can be expanded in case of specific requirements.
An aspect of interest is, that not only parameters are covered by the regulations
mentioned above, but also precision of applied methods for analysis.
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Within thenext two years there are two major changes to be expected:
List of parameters for children under three years of age. This probably will
lead to an increase in
intensification of surveillance and lower limits.
Consideration of interaction of different parameters. Research into total impact
(effects of various parameters
together) and effects, as intensification
of coexisting parameters, will be performed. For measurement
technology this means measurement of parameters
depending from other parameters.
List of important chamical parameters (limits in parentheses):
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pH-value (>=6,5 and <=9,5)
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Sulfate (250 mg/l)
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Conductivity (2.500 µS)
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Nitrate (50 mg/l)
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Iron (200 µg/l)
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Nitrite (0,5 mg/l)
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Manganese (50 µg/l)
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Fluoride (1,5 mg/l)
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Ammonium (0,5 mg/l)
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Nickel (50 µg/l)
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Chloride (250 mg/l)
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Chromium (50 µg/l)
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A big challenge for analysers measuring continuously is the fact, that parameters
at low measurement ranges have to be measured in a complex matrix. Potable water
contains great a number of heavy metals. The Drinkingwater-Monitor by SEIBOLD-
Messtechnik is able to meet these requirements and by default comprises measurement
of:
Turbidity (NTU)
pH-value (pH)
Conductivity (µS)
A selection of specific parameters, e.g. iron/manganese.
Additional parameters can be added according to given local requirements. Further,
multiple modules for measurement can be implemented to one analyser.
Further information can be found:
Directives by World Health Organization (WHO)
Directives by European Commission
US Clean Water Act
United Nations Environment Programme
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SEIBOLD-Messtechnik und Projektentwicklug GmbH,
A-1110 Wien, Grillgasse 51
Tel +43 1 332 00 60, Fax +43 1 332 00 60 44,
office@seiboldme.com
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