EN 14984:2016

Liming materials - Determination of product effect on soil pH - Soil incubation method

This document specifies two methods (method A and method B) of measuring the effect of the addition of any material claimed to have a liming effect on the soil, using the same basic principles.
Method A measures the changes to the soil pH resulting from the addition of any material claimed to have a liming effect on a standard soil, measured over a period of one month.
Method B assesses the efficiency of any material claimed to have a liming effect, using a range of defined soils and measured over a period of up to 2,5 years.
The methods are not applicable to mineral products coarser than 6,3 mm for method A or 20 mm for method B, determined according to EN 12948.
NOTE   These methods allow comparison of products under controlled climatic conditions but do not replace field experiments.

Kalkdünger - Bestimmung des Produkteinflusses auf den Boden-pH-Wert - Bodeninkubationsverfahren

Dieses Dokument legt zwei Verfahren (Verfahren A und Verfahren B) zur Messung der Auswirkungen fest, die sich ergeben, wenn Materialien für die eine Kalkdüngewirkung im Boden beansprucht wird, in Böden eingebracht werden, wobei für beide Ver¬fahren dieselben Grundprinzipien angewendet werden.
Mit Verfahren A werden die Veränderungen des Boden-pH-Wertes gemessen, die sich durch das Einbringen von Materialien ergeben, für die eine Kalkdüngewirkung in einen Standardboden beansprucht wird, wobei die Messdauer einen Monat beträgt.
Mit Verfahren B wird der Wirkungsgrad von Materialien bewertet, für die eine Kalkdüngewirkung bean-sprucht wird, wobei eine Reihe festgelegter Böden über einen Zeitraum von bis zu 2,5 Jahren gemessen wird.
Die Verfahren sind nicht auf mineralische Produkte anwendbar, deren Korngröße über 6,3 mm bei Verfahren A oder 20 mm bei Verfahren B, bestimmt nach EN 12948, liegt.
ANMERKUNG   Diese Verfahren ermöglichen einen Vergleich von Produkten unter kontrollierten Klimabedingungen, ersetzen jedoch nicht die Feldversuche.

Amendements minéraux basiques - Détermination de l'effet d'un produit sur le pH d'un sol - Méthode par incubation du sol

Ce document spécifie deux méthodes (méthode A et méthode B) pour mesurer l’effet de l’ajout de tout matériau revendiquant un effet basique sur le sol, en utilisant les mêmes principes de base.
La méthode A mesure les changements du pH du sol suite à l’ajout d’un matériau revendiquant un effet basique sur un sol type, mesuré sur une période d’un mois.
La méthode B évalue l’efficacité d’un matériau revendiquant un effet basique, en utilisant une gamme de sols définies et des mesures faites sur une période allant jusqu’à 2,5 ans.
Les méthodes ne sont pas applicables aux produits minéraux plus gros que 6,3 mm pour la méthode A ou 20 mm pour la méthode B, déterminé selon l’EN 12948.
NOTE   Ces méthodes permettent de comparer des produits dans des conditions climatiques contrôlées mais ne remplacent pas les expériences au champ. Les méthodes ne sont pas applicables à des produits minéraux ayant une granulométrie supérieure à 6,3 mm pour la méthode A ou 20 mm pour la méthode B.

Sredstva za apnjenje - Določevanje vpliva sredstva za apnjenje na pH tal - Inkubacijska metoda

Ta evropski standard določa dve metodi merjenja vpliva dodajanja materialov z domnevnim učinkom apnjenja na tla z uporabo nekaterih osnovnih načel. Z metodo A se merijo spremembe vrednosti pH tal, ki so posledica dodajanja materialov z domnevnim učinkom apnjenja na standardna tla (izmerjeno v obdobju enega meseca). Z metodo B se ocenjuje učinkovitost materialov z domnevnim učinkom apnjenja na določena tla (izmerjeno v obdobju do največ 2,5 leta). Ti dve metodi omogočata primerjavo izdelkov v nadzorovanih okoljskih pogojih, vendar ne nadomeščata eksperimentov na terenu. Metodi se ne uporabljata za mineralne izdelke iz delcev, večjih od 6,3 mm za metodo A oz. 20 mm za metodo B.

General Information

• Status: Published
• Publication Date: 12-Jul-2016
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 3 - Liming materials
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 27-Apr-2022
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 14984:2017 - Liming materials - Determination of product effect on soil pH - Soil incubation method

Relations

• Replaces: EN 14984:2006 - Liming materials - Determination of product effect on soil pH - Soil incubation method
• Effective Date: 20-Jul-2016

Overview

EN 14984:2016 - "Liming materials - Determination of product effect on soil pH - Soil incubation method" (CEN) describes two laboratory incubation methods to measure how liming materials affect soil pH. The standard provides controlled procedures to compare the liming effect of products under reproducible climatic and soil conditions. It supersedes EN 14984:2006 and introduces the option to express results as ENVI (effective neutralizing value by incubation).

Key topics and requirements

• Two test methods (same basic principles):
  • Method A: Measures pH change on a defined reference soil over one month. Intended for standardised, tightly specified soil characteristics (pH range, CEC, organic carbon, clay fraction).
  • Method B: Assesses liming efficiency using a range of defined soils and longer-term incubation (up to 2.5 years) to capture slower reactions and variable soil types.
• Product size limits: Not applicable to mineral products coarser than 6.3 mm (Method A) or 20 mm (Method B), determined according to EN 12948.
• Controlled laboratory conditions: Temperature-controlled incubation, regular pH measurements, standardized sample preparation and pot/test portion procedures (see referenced apparatus and reagents).
• Results expression: pH change, efficiency metrics and optional ENVI calculation (formulas added in 2016 revision).
• Limitations: Laboratory incubation methods are comparative and reproducible but do not replace field experiments - field conditions (mixing, agglomerates, climate) can affect in-situ performance.

Practical applications and users

Who benefits from EN 14984:2016:

• Manufacturers and formulators of liming materials validating product claims (neutralizing effect, efficiency).
• Independent testing laboratories performing quality control and product comparison under standard conditions.
• Regulatory bodies and certification schemes assessing conformity and labeling claims for liming materials.
• Soil scientists, agronomists and R&D teams studying pH dynamics, organic-matter-driven effects and long-term material behavior. Practical uses:
• Comparative product benchmarking and R&D screening.
• Substantiating marketing claims about soil pH impact.
• Pre-field evaluation to supplement-but not replace-field trials.

Related standards

Relevant references commonly used alongside EN 14984:

• EN 12948 - particle size determination for mineral liming materials
• EN 12945 - neutralizing value (NV) chemical methods
• EN 13971, EN 16357 - reactivity assessments
• EN 1482 series - sampling and sample preparation
• EN 12048 - moisture determination

EN 14984:2016 is essential for standardized laboratory assessment of liming materials’ effect on soil pH, providing reproducible comparative data to guide product development, quality control and regulatory evaluation.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kalkdünger - Bestimmung des Produkteinflusses auf den Boden-pH-Wert - BodeninkubationsverfahrenAmendements minéraux basiques - Détermination de l'effet d'un produit sur le pH d'un sol - Méthode par incubation du solLiming materials - Determination of product effect on soil pH - Soil incubation method65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 14984:2016SIST EN 14984:2017en,fr,de01-april-2017SIST EN 14984:2017SLOVENSKI
STANDARDSIST EN 14984:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14984
July
t r s x ICS
x wä r z r Supersedes EN
s v { z vã t r r xEnglish Version
Liming materials æ Determination of product effect on soil pH æ Soil incubation method Amendements minéraux basiques æ Détermination de l 5effet d 5un produit sur le pH d 5un sol æ Méthode par incubation du sol
Kalkdünger æ Bestimmung des Produkteinflusses auf den BodenæpHæWert æ Bodeninkubationsverfahren This European Standard was approved by CEN on
s { May
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s v { z vã t r s x ESIST EN 14984:2017

Variations to the test methods . 27 A.1 General . 27 A.2 Variations . 27 A.2.1 Different measurement periods . 27 A.2.2 Supply of different amounts . 27 A.2.3 Soil different from the standard soil. 27 A.2.4 Different incubation temperature . 28 A.2.5 Additional measurements . 28 Annex B (normative)
Determination of moisture at full soil water holding capacity . 29 Bibliography . 31
Key
no liming material
different products X weeks of incubation Y soil pH Figure 1 — Soil pH versus weeks of soil incubation
1) No international buffered method is available at pH = 7. As soon as an International Standard is available for cation exchange capacity buffered at pH = 7, it will replace the NF X 31-130. SIST EN 14984:2017

Key
no liming material
different products X weeks of incubation Y efficiency in percent Figure 2 — Efficiency versus weeks of soil incubation 3.3 liming index ratio of the improvement in soil pH due to the product under test to that achieved using the reference liming material Note 1 to entry: The liming index, LIx is an indicator given by the following =x(pH1 - pH2)(pH3 - pH4)LI where LI is the liming index; pH1 is the pH of the soil with tested product after time x; pH2 is the pH of the soil alone after time x; pH3 is the pH of the soil with the reference liming material after time x; pH4 is the pH of the soil alone after time x; x is the length of time of the incubation test. Default value is four weeks. SIST EN 14984:2017

ENVI alternative expression of results, expressed as NV equivalent Note 1 to entry: The effective neutralizing value by incubation, ENVI, is an indicator given by the following Formula: =×4weeksENVILIRLMNV (for method A, see 5.5, Table 2) =×iweeksiweeks/100ENVIERLMNV (for method B, see 6.5.2) where ENVI is the effective neutralizing value by incubation; LI4weeks is the liming index at 4 weeks in method A; Ei weeks is the efficiency at i weeks in method B; RLMNV is the neutralizing value of the reference liming material (5.1.2); if the conventional NV unit is CaO, RLMNV = 75,6 if the conventional NV unit is HO-, RLMNV = 45,8. 4 Principle 4.1 General Incorporation of a standardized amount of liming material or material claimed to have a liming effect into a reference soil or range of defined soils. Incubation of these soils under controlled climatic conditions for a defined period. Checking the buffer capacity of the soil with a reference liming material and measuring the changes in soil pH. 4.2 Method A Monitoring after 24 h, 2 weeks and 4 weeks the changes in soil pH under controlled temperature and moisture conditions. 4.3 Method B Monitoring after 24 h, 1 week, 3 weeks, 6 weeks, 12 weeks, 24 weeks and 48 weeks, and 1 year, 1,5 years, 2 years and 2,5 years of the changes in soil pH under controlled temperature and moisture conditions. When testing calcined products (burnt products and slaked products), add monitoring at 1 h, 3 h and 6 h and 3 days. The test may be stopped at any time after 3 weeks, according to information required. The tests should be performed within the pH range of 4,6 to 7,0, subject to there being a linearity response. SIST EN 14984:2017
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