We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
  • I.S. EN 12121:2022

    Current The latest, up-to-date edition.
    Add to Watchlist
    This Standard has been added successfully to your Watchlist.
    Please visit My Watchlist to see all standards that you are watching.
    Please log in or to add this standard to your Watchlist.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    You need to be logged in to add this standard to your Watchlist.
    Please log in now or create an account to add.
    You already added this Product in the Watchlist.

    Chemicals used for treatment of water intended for human consumption - Sodium disulfite

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  07-05-2022

    Publisher:  National Standards Authority of Ireland

    Add to Watchlist

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    European foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and Definitions
    4 Description
    5 Purity criteria
    6 Test methods
    7 Labelling, Transportation, Storage
    Bibliography

    Abstract - (Show below) - (Hide below)

    This document is applicable to sodium disulfite used for treatment of water intended for human consumption.

    General Product Information - (Show below) - (Hide below)

    Committee TC 164
    Document Type Standard
    Product Note The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
    Publisher National Standards Authority of Ireland
    Status Current
    Supersedes
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective