EN 16169:2012

Sludge, treated biowaste and soil - Determination of Kjeldahl nitrogen

This European Standard specifies the determination of Kjeldahl nitrogen according to the Kjeldahl procedure in sludge, treated biowaste and soil.
Nitrate and nitrite are not included.
Compounds with nitrogen bound in N-N, N-O linkages and some heterocycles (pyridines) are only partially determined.
The limit of detection (LOD) is usually 0,03 % nitrogen, and the limit of quantification (LOQ) is 0,1 % nitrogen (using 0,25 mol/l sulfuric acid for titration).

Schlamm, behandelter Bioabfall und Boden - Bestimmung des Kjeldahl-Stickstoffs

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Stickstoffs nach Kjeldahl in Schlamm, behandeltem Bioabfall und Boden fest.
Der Stickstoff in Nitraten und Nitriten wird nicht erfasst.
Der in N N Verbindungen, N O Verbindungen sowie in einigen heterozyklischen Verbindungen (Pyridine) vorliegende Stickstoff wird nur teilweise erfasst.
Eine typische Nachweisgrenze (LOD, en: limit of detection) liegt bei 0,03 % Stickstoff und eine typische Bestimmungsgrenze (LOQ, en: limit of quantification) liegt bei 0,1 % Stickstoff (bei Verwendung von 0,25 mol/l Schwefelsäure für die Titration).

Boues, biodéchets traités et sols - Détermination de l'azote Kjeldahl

La présente Norme européenne spécifie la détermination de l'azote Kjeldahl selon le mode opératoire de Kjeldahl, dans les boues, les biodéchets traités et les sols.
Les nitrates et les nitrites ne sont pas inclus.
Les composés comportant de l'azote lié dans des liaisons N-N, N-O et certains hétérocycles (pyridines) ne sont que partiellement déterminés.
La limite de détection (LD) est habituellement 0,03 % d'azote, et la limite de quantification (LQ) est 0,1 % d'azote (en utilisant l'acide sulfurique à 0,25 mol/l pour le titrage).

Blato, obdelani biološki odpadki in tla - Določevanje dušika po Kjeldahlu

Ta evropski standard opredeljuje določevanje dušika po Kjeldahlu v skladu s Kjeldahlovo metodo v blatu, obdelanih bioloških odpadkih in tleh. Nitrat in nitrit nista vključena. Spojine z dušikom, vezanim v N-N, N-O in nekaterih heterocikličnih spojinah (piridini) so samo delno določene. Meja detekcije (LOD) je običajno 0,03 % dušika, meja kvantifikacije (LOQ) pa je 0,1 % dušika (pri čemer se porabi 0,25 mol/l žveplove kisline za titracijo).

General Information

• Status: Published
• Publication Date: 21-Aug-2012
• ICS: 13.030.01 - Wastes in general
• ICS: 13.080.10 - Chemical characteristics of soils
• Technical Committee: CEN/TC 444 - Environmental characterization
• Drafting Committee: CEN/TC 444/WG 3 - Inorganic analysis
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2023
• Completion Date: 02-Dec-2023
• Directive: 86/278/EEC - Protection of the environment, and in particular of the soil, when sewage sludge is used in agriculture
• Mandate: M/330 - Mandate given to CEN for the development of horizontal standards in the fields of sludge, biowaste and soil.
• Ref Project: SIST EN 16169:2013 - Sludge, treated biowaste and soil - Determination of Kjeldahl nitrogen

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.MHOGDKOXSchlamm, behandelter Bioabfall und Boden - Bestimmung des Kjeldahl-StickstoffsBoues, bio-déchets traités et sols - Détermination de l'azote KjeldahlSludge, treated biowaste and soil - Determination of Kjeldahl nitrogen13.080.10Chemical characteristics of soils13.030.20Liquid wastes. SludgeICS:Ta slovenski standard je istoveten z:EN 16169:2012SIST EN 16169:2013en,fr,de01-februar-2013SIST EN 16169:2013SLOVENSKI
STANDARD



SIST EN 16169:2013



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16169
August 2012 ICS 13.030.01; 13.080.10 English Version
Sludge, treated biowaste and soil - Determination of Kjeldahl nitrogen
Boues, bio-déchets traités et sols - Détermination de l'azote Kjeldahl
Schlamm, behandelter Bioabfall und Boden - Bestimmung des Kjeldahl-Stickstoffs This European Standard was approved by CEN on 24 May 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16169:2012: ESIST EN 16169:2013



EN 16169:2012 (E) 2 Contents Page Foreword .3Introduction .41 Scope .52 Normative references .53 Terms and definitions .54 Principle .55 Interferences and sources of errors .66 Reagents .67 Apparatus .78 Sample storage and sample pretreatment .79 Procedure .79.1 General .79.2 Digestion .79.3 Titration .89.4 Performance check .89.5 Blank test .810 Calculation .
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