Name: EN 1421:2012
Brand: CEN

Chemicals used for treatment of water intended for human consumption - Ammonium chloride

Superseded date

27-04-2022

Published date

14-11-2012

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Description
4 Purity criteria
5 Test methods
6 Labelling - Transportation - Storage
Annex A (informative) - General information on ammonium
chloride
Annex B (normative) - General rules relating to safety
Bibliography

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).

Committee	CEN/TC 164
DevelopmentNote	Supersedes PREN 1421. (12/2012)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
Supersedes	PREN 1421 : DRAFT 2012

Standards	Relationship
DS EN 1421 : 2013	Identical
ONORM EN 1421 : 2013	Identical
UNI EN 1421 : 2013	Identical
UNE-EN 1421:2013	Identical
PN EN 1421 : 2013	Identical
SN EN 1421 : 2012	Identical
BS EN 1421:2012	Identical
DIN EN 1421:2013-03	Identical
I.S. EN 1421:2012	Identical
NEN EN 1421 : 2012	Identical
NBN EN 1421 : 2013	Identical
NF EN 1421 : 2013	Identical
NS EN 1421 : 2012	Identical

ISO 3165:1976	Sampling of chemical products for industrial use — Safety in sampling
EN ISO 11885:2009	Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885:2007)
ISO 11969:1996	Water quality Determination of arsenic Atomic absorption spectrometric method (hydride technique)
EN ISO 12846:2012	Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846:2012)
ISO 12846:2012	Water quality — Determination of mercury — Method using atomic absorption spectrometry (AAS) with and without enrichment
ISO 9965:1993	Water quality Determination of selenium Atomic absorption spectrometric method (hydride technique)
ISO 8288:1986	Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame atomic absorption spectrometric methods
ISO 3332:1975	Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
ISO 11885:2007	Water quality Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
EN 1233 : 1996	WATER QUALITY - DETERMINATION OF CHROMIUM - ATOMIC ABSORPTION SPECTROMETRIC METHODS
ISO 6332:1988	Water quality — Determination of iron — Spectrometric method using 1,10-phenanthroline
ISO 2762:1973	Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995	Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
ISO 6206:1979	Chemical products for industrial use — Sampling — Vocabulary
ISO 8213:1986	Chemical products for industrial use — Sampling techniques — Solid chemical products in the form of particles varying from powders to coarse lumps
EN ISO 11969:1996	WATER QUALITY - DETERMINATION OF ARSENIC - ATOMIC ABSORPTION SPECTROMETRIC METHOD (HYDRIDE TECHNIQUE)