BS EN 12121:2012

What is BS EN 12121- Sodium disulfite used for the treatment of water about?

BS EN 12121 discusses chemicals used for the treatment of water intended for human consumption.

BS EN 12121 is applicable to sodium disulfite used for the treatment of water intended for human consumption.

Who is BS EN 12121- Sodium disulfite used for the treatment of water for?

BS EN 12121 on sodium disulfite used for the treatment of water intended for human consumption is useful for:

• Chemical manufacturers
• Water treatment plants
• Packaged drinking water manufacturers
• Quality control personnel
• Inspection personnel

Why should you use BS EN 12121- Sodium disulfite used for the treatment of water?

BS EN 12121 provides you with the minimum purity requirements for sodium disulfite used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. Depending on the raw material and the manufacturing process other impurities may be present and, if so, this shall be notified to the user and when necessary to relevant authorities.

BS EN 12121 provides you with the characteristics of sodium disulfite and specifies the requirements and the corresponding test methods for sodium disulfite. BS EN 12121 gives information on sodium disulfite use in water treatment. BS EN 12121 also determines the rules relating to safe handling and use. BS EN 12121 helps you to avoid potential adverse effects on the quality of water intended for human consumption.

What’s changed since the last update?

BS EN 12121:2012 supersedes BS EN 12121:2005, which is withdrawn. BS EN 12121:2012 includes a technical change with respect to BS EN 12121:2005. These include:

• Modification on labelling, deletion of the reference to EU Directive 80/778/EEC of 15 July 1980 in order to take account of the latest Directive in force