ISO 9912-4:2018
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ISO 9912-4:2018
68953
Indisponible en français

État actuel : Publiée (En cours d'examen)

Le dernier examen de cette norme date de 2023. Cette édition reste donc d’actualité.
fr
Format Langue
std 1 96 PDF + ePub
std 2 96 Papier
  • CHF96
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Résumé

This document specifies construction requirements and test methods for pressurized granulated media filters, hereinafter referred to as media filters, intended for operation in agricultural irrigation systems.

It is applicable to both manual cleaning media filters and automatic self-cleaning media filters, used as single unit or in batteries (two or more units working in parallel).

This document covers the operation and performance of a media filter, together with all related valves, back flushing mechanism, underdrains, manifolds and other related accessories necessary for the operation of the filter.

This document is applicable to three configurations of a filter.

a) An empty filter vessel (tank) housing.

b) A filter vessel filled with media filter material(s), complete with valves, connections, air release and/or other accessories. This configuration, when connected to and controlled by a flushing control device, is a complete operating single filter unit, usually positioned as a part of a filtration station.

c) A filtration station, called "filter battery".

Annex A provides information on types of irrigation media filters.

Annex B provides information on granulated media.

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Informations générales

  •  : Publiée
     : 2018-08
    : Norme internationale confirmée [90.93]
  •  : 1
  • ISO/TC 23/SC 18
    65.060.35 
  • RSS mises à jour

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