CSN EN 1421

CSN EN 1421 This document is applicable to ammonium chloride used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of ammonium chloride and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also determines the rules relating to safe handling and use of ammonium chloride (see Annex B).
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.