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Document History

  1. NS-EN ISO 7393-1:2000


    Water quality — Determination of free chlorine and total chlorine — Part 1: Titrimetric method using N, N-diethyl-1,4-phenylenediamine (ISO 7393-1:1985)

    • Most Recent
  2. NS 4731:1991


    Water analysis — Determination of available chlorine in water — Titrimetric method

    • Historical Version
  3. NS 4756:1982

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    Water analysis — Determination of chlorider — Potentiometric titration

    • Historical Version