Items tagged with SEWAGE INSTALLATIONS Files

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Gullies: Pressure resistance (NT VVS 042)

NT VVS 042

  • This Nordtest method is designed to determine wether the water trap in the gully can withstand certain pressure changes in the drainage system.

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Gullies: discharge capacity (NT VVS 039)

NT VVS 039

  • This Nordtest method is designed to ascertain the maximum water-flow a gully can discharge before backing-up, leakage, noise etc. occurs. Max. discharge capacity from floor and through side-inlets are measured.


Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.