Characterization of sludges. Determination of Kjeldahl nitrogen

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-10-2000

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Limitations and interferences
6 Reagents
7 Apparatus
8 Sample pretreatment
9 Procedure
10 Expression of results
11 Test report
Annex A (informative) Performance data of interlaboratory
comparison

Specifies a method to determine the "Kjeldahl Nitrogen" in sludge and sludge products. Digestion is catalysed by copper or selenium, the temperature being raised by a high concentration of sodium sulphate. Although wet samples are usually taken for analysis, it is recognized practice to report results on a dry mass basis (g/kg).

This method describes a procedure for the determination of \'Kjeldahl Nitrogen\' in sludge and sludge products. The digestion is catalysed by selenium or copper, the temperature being raised by a high concentration of sodium sulphate. Although wet samples are normally taken for analysis, it is recognised practice to report results on a dry mass basis (g/kg). Consequently, it is also necessary to determine the dry residue of the homogenised sample used for analysis (see EN 12880).

Committee	EH/5
DevelopmentNote	Supersedes 98/563409 DC. (05/2005)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current
Supersedes	98/563409 DC : DRAFT SEP 1998

Standards	Relationship
NF EN 13342 : 2000	Identical
NEN EN 13342 : 2000	Identical
SN EN 13342 : 2000	Identical
DIN EN 13342:2001-01	Identical
UNI EN 13342 : 2002	Identical
NBN EN 13342 : 2000	Identical
I.S. EN 13342:2000	Identical
UNE-EN 13342:2001	Identical
EN 13342:2000	Identical
NS EN 13342 : 1ED 2000	Identical

ISO 5664:1984	Water quality — Determination of ammonium — Distillation and titration method
EN 25663 : 1993	WATER QUALITY - DETERMINATION OF KJELDAHL NITROGEN - METHOD AFTER MINERALIZATION WITH SELENIUM
EN 12880:2000	Characterization of sludges - Determination of dry residue and water content
EN ISO 5667-13:2011	Water quality - Sampling - Part 13: Guidance on sampling of sludges (ISO 5667-13:2011)
EN ISO 3696:1995	Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

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BS EN 13342:2000

Characterization of sludges. Determination of Kjeldahl nitrogen

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory