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Water engineering – testing and certification


Water engineering – testing and certification

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  • GW 335-A6 Technical Requirements 12/2015

    Plastics Piping Systems for Gas and Water Supply; Requirements and Testing; Part A6: PA-U 160 and PA-U 180 Pipes and their Joints and Connections ++ PDF file ++

    Artikelnummer: 510103

    Einzelpreis:
    Einzelpreis: exkl. MwSt. inkl. MwSt.
    46,90 €
    55,81 €
  • W 347 Code of Practice 05/2006

    Hygiene requirements for cement-bound materials intended for use in drinking water supply systems - testing and evaluation ++ PDF file ++

    Artikelnummer: 507898

    This Code of Practice W 347 describes the tests and hygiene requirements for cement-bound materials in contact with drinking water or with raw water used for water abstraction purposes.It furthermore serves to verify the hygienic safety of all cement-bound materials listed in Table 1 that are used in the production of materials intended for use in contact with drinking water for the conditioning, storage and distribution of drinking water in accordance with § 17 Par. 1 of the Drinking Water Ordinance.

    Einzelpreis:
    Einzelpreis: exkl. MwSt. inkl. MwSt.
    46,90 €
    55,81 €