EN 12945:2008
(Main)Liming materials - Determination of neutralizing value - Titrimetric methods
Liming materials - Determination of neutralizing value - Titrimetric methods
This European Standard specifies two methods for the determination of the neutralizing value (NV) of liming materials.
Method A is applicable to all liming materials except silicate liming materials and liming materials with more than 3 % P2O5.
Method B is applicable to all liming materials except products with more than 3 % mass fraction P2O5, and calcined and slaked products of carbonate origin.
NOTE The methods described in ISO 6598 and ISO 7497 can be used for the determination of P2O5 content.
Calcium-/Magnesium-Bodenverbesserungsmittel - Bestimmung des Neutralisationswertes - Titrimetrische Verfahren
Diese Europäische Norm legt zwei Verfahren zur Bestimmung des Neutralisationswertes (NV) von
Calcium-/Magnesium-Bodenverbesserungsmitteln fest.
Verfahren A gilt für alle Calcium-/Magnesium-Bodenverbesserungsmittel, ausgenommen sind Kalke aus
Eisenhüttenschlacke und Calcium-/Magnesium-Bodenverbesserungsmittel mit über 3 % Massenanteil P2O5.
Verfahren B gilt für alle Calcium-/Magnesium-Bodenverbesserungsmittel, ausgenommen sind Produkte mit
über 3 % Massenanteil P2O5 und gebrannte und gelöschte Produkte von natürlichem Carbonat.
ANMERKUNG Zur Bestimmung des P2O5-Gehalts können die in ISO 6598 und ISO 7497 beschriebenen Verfahren
verwendet werden (siehe [2] und [3]).
Amendements minéraux basiques - Détermination de la valeur neutralisante - Méthodes par titrimétrie
La présente Norme européenne spécifie deux méthodes pour la détermination de la valeur neutralisante (VN)
des amendements minéraux basiques.
La méthode A est applicable à tous les amendements minéraux basiques, à l'exception des amendements
minéraux basiques sidérurgiques et des amendements minéraux basiques contenant plus de 3 % de P2O5.
La méthode B est applicable à tous les amendements minéraux basiques à l'exception des produits contenant
plus de 3 % de fraction massique de P2O5 et des produits calcinés et éteints issus de carbonates.
NOTE Les méthodes ISO 6598 et ISO 7497 peuvent être utilisées pour la détermination de la teneur en P2O5 (voir [2]
et [3])
Sredstva za apnjenje - Določevanje nevtralizacijske vrednosti - Titrimetrijske metode
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Liming materials - Determination of neutralizing value - Titrimetric methodsLWULPHWULMVNHPHWRGHAmendements minéraux basiques - Détermination de la valeur neutralisante - Méthodes par titrimétrieCalcium-/Magnesium-Bodenverbesserungsmittel - Bestimmung des Neutralisationswertes - Titrimetrische VerfahrenTa slovenski standard je istoveten z:EN 12945:2008SIST EN 12945:2008en,fr,de65.080ICS:SIST EN 12945:20031DGRPHãþDSLOVENSKI
STANDARDSIST EN 12945:200801-april-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12945February 2008ICS 65.080Supersedes EN 12945:2002
English VersionLiming materials - Determination of neutralizing value -Titrimetric methodsAmendements minéraux basiques - Détermination de lavaleur neutralisante - Méthodes par titrimétrieCalcium-/Magnesium-Bodenverbesserungsmittel -Bestimmung des Neutralisationswertes - TitrimetrischeVerfahrenThis European Standard was approved by CEN on 28 December 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12945:2008: E
EN 12945:2008 (E) 2 Contents page Foreword.3 Introduction.4 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Principle.4 5 Reagents.5 6 Apparatus.5 7 Sampling.5 8 Procedure.6 9 Expression of results for both Method A and Method B.7 10 Precision.7 11 Test report.8 Annex A (informative)
Results of an inter-laboratory trial to determine the neutralizing value.9 Bibliography.10
EN 12945:2008 (E) 3 Foreword This document (EN 12945:2008) has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by DIN. This European Standard shall be given the sta
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