Name: UNI EN 13342 : 2002
Brand: UNI

CHARACTERISATION OF SLUDGES - DETERMINATION OF KJELDAHL NITROGEN

Published date

01-08-2002

Publisher

Ente Nazionale Italiano di Unificazione (UNI)

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).

Committee	CT 4
DocumentType	Standard
PublisherName	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current

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

UNI 10458 : 2011	BIOGAS PLANTS FOR THE PRODUCTION AND THE USE OF BIOGAS, BASED ON ANAEROBIC DIGESTION PROCESSES - CLASSIFICATION, ESSENTIAL REQUIREMENTS, GUIDELINES FOR CONSTRUCTION, TRADE OFFER, FINAL ORDER, ACCEPTANCE TESTS OF THE PLANTS
UNI 11209-4 : 2008	TREATMENT PLANTS FOR INDUSTRIAL WASTEWATERS - CRITERIA AND REQUIREMENTS FOR ORDERING, SUPPLYING, TESTING AND MAINTENANCE - PART 4: MEMBRANE FILTRATION UNITS