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UNI EN 1421 : 2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM CHLORIDE

Superseded date

09-06-2022

Superseded by

UNI EN 1421:2022

Published date

01-01-2013

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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

Pertains to ammonium chloride used for treatment of water intended for human consumption.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ONORM EN 1421 : 2013 Identical
EN 1421:2012 Identical
UNE-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
NS EN 1421 : 2012 Identical
NBN EN 1421 : 2013 Identical
NF EN 1421 : 2013 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) (ISO 11969:1996)

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