NS-EN 12121:2005
Chemicals used for treatment of water intended for human consumption — Sodium disulfite

Standard No.

NS-EN 12121:2005

Release Date

2005

Published By

Standards Norway

Status

Be replaced

Replace By

NS-EN 12121:2012

Latest

NS-EN 12121:2022

Scope

ADOPTED_FROM:EN 12121:2005 This European Standard is applicable to sodium disulfite used for treatment of water intended for human consumption. It describes the characteristics of sodium disulfite and specifies the requirements and the corresponding test methods for sodium disulfite. It gives information on its use in water treatment.

NS-EN 12121:2005 history

• 2022 NS-EN 12121:2022 Chemicals used for treatment of water intended for human consumption - Sodium disulfite
• 2013 NS-EN 12121:2012 Chemicals used for treatment of water intended for human consumption — Sodium disulfite
• 2005 NS-EN 12121:2005 Chemicals used for treatment of water intended for human consumption — Sodium disulfite
• 1999 NS-EN 12121:1998 Chemicals used for treatment of water intended for human consumption — Sodium disulfite

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