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Consumer Protection

As stipulated in the Drinking Water Directive of May 2001 becoming effective as of January 1st, 2003 the responsibility for the quality of drinking water is not solely in the hands of the water works but also in the hands of real estate owners,

The reference values for maximum permissible concentrations of substances are to be measured directly at the faucet. The installation of drinking water applications has to be in accordance with legal aspects and therefore the choice of the suitable material is essential.

In order to adhere to the limited values the material specification DIN 50930-6 fixing maximum permissible concentrations of microorganisms allowed for alloys used for drinking water applications was set up before the German Drinking Water Directive came into effect as of January 2002. The pressure to eliminate harmful substances — such as lead — is being constantly increased. Legal requirements of various U.S. environment authorities will further enhance this development.

Already today Cuphin meets future legal requirements for material used in drinking water installations — in all markets all over the world.

For copper alloys the following limit values are of reference*:
element limits (in [µg/l])
till 2003 till 2012 from 2013
plumb 40 25 10
nickel 40 20 20
arsenic 10 10 10
*Excerpt from Drinking Water Directive (PDF, 98 KB) **

**only available in German

German Drinking Water Directive (TrinkwV) ** (PDF, 98 KB)

The German Drinking Water Directive defines the limit values for maximum permissible concentrations of substances contained in drinking water measured directly at the faucet in order to prevent health impairment.

**only available in German

Materials approved today

Material standard DIN 50930-6 offers the plumber a choice of materials ensuring that an installation made of materials listed therein complies with the limit values of the Drinking Water Directive.

The latest version of

DIN 50930-6

is available from the Beuth-Verlag.

bole bore