In the directive 2004/107/EC (Fourth Daughter Directive), the EU has set a target value for nickel (Ni) for the protection of human health: the Ni annual mean value may not exceed 20 nanograms per cubic metre (ng/m3). The target value enters into force 31.12.2012.
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– to verify whether it isn't poisoning the air in your home or consuming too much energy. Have it replaced once every 15 years – to benefit from the technological advances that render new boilers more energy-efficient.
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