This European Standard 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).
EN 1421:2012 Referenced Document
EN 1233:1996 Water Quality - Determination of Chromium - Atomic Absorption Spectrometric Methods
EN ISO 11885:2009 Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
EN ISO 11969:1996 Water Quality - Determination of Arsenic - Atomic Absorption Spectrometric Method (Hydride Technique) (ISO 11969 : 1996)
EN ISO 12846:2012 Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichment
EN ISO 3696:1995 Water for Analytical Laboratory Use- Specification and Test Methods (ISO 3696 : 1987)
ISO 2762:1973 Hydrochloric acid for industrial use; Determination of soluble sulphates; Turbidimetric method
ISO 3165:1976 Sampling of chemical products for industrial use; Safety in sampling
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ISO 6206:1979 Chemical products for industrial use; Sampling; Vocabulary Bilingual edition
ISO 6332:1988 Water quality; determination of iron; spectrometric method using 1,10-phenanthroline
ISO 8213:1986 Chemical products for industrial use; Sampling techniques; Solid chemical products in the form of particles varying from powders to coarse lumps
ISO 8288:1986 Water quality; Determination of cobalt, nickel, copper, zinc, cadmium and lead; Flame atomic absorption spectrometric methods
EN 1421:2012 history
2012EN 1421:2012 Chemicals used for treatment of water intended for human consumption - Ammonium chloride
2005EN 1421:2005 Chemicals Used for Treatment of Water Intended for Human Consumption - Ammonium Chloride
1996EN 1421:1996 Chemicals Used for Treatment of Water Intended for Human Consumption - Ammonium Chloride