EN 15704:2008

Liming materials - Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water

This European Standard specifies a method for the determination of the break down of granulated calcium and calcium /magnesium carbonates under the influence of water.

Calcium-/Magnesium-Bodenverbesserungsmittel - Bestimmung des Zerfalls von granulierten Calcium- und Calcium-/Magnesiumcarbonaten unter Wassereinwirkung

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Zerfalls von granulierten Calcium- und
Calcium-/Magnesiumcarbonaten unter Wassereinwirkung fest.

Amendements minéraux basiques - Détermination du délitage à l'eau de carbonates de calcium et carbonates de calcium/magnésium granulés

La présente Norme européenne spécifie une méthode permettant de déterminer le délitage à l’eau de granulés de carbonates de calcium et carbonates de calcium/magnésium.

General Information

• Status: Published
• Publication Date: 16-Dec-2008
• 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: 05-Feb-2025
• Completion Date: 14-Apr-2025

Overview

EN 15704:2008 is a European standard developed by CEN that defines the method for determining the breakdown of granulated calcium and calcium/magnesium carbonates when exposed to water. These materials, commonly referred to as liming materials, are used extensively in agriculture to improve soil quality and adjust pH levels. The standard provides a reproducible and precise testing protocol to evaluate how granulated carbonates degrade under aqueous conditions, which is crucial for assessing product quality and performance in practical applications. This standard applies across the European Union and is intended for use by manufacturers, quality control laboratories, and regulatory bodies overseeing fertilizer and soil amendment products.

Key Topics

• Scope and Applicability
  Specifies a standardized laboratory method to assess the disintegration or breakdown of granulated lime materials due to water exposure.

• Test Principle
  The test involves mixing a known quantity of granulated calcium or calcium/magnesium carbonate in water, stirring under controlled conditions, and then sieving to evaluate how much material has broken down into finer particles.

• Apparatus and Reagents
  Required apparatus includes a drying oven, magnetic stirrer with specific stirrer rod dimensions, test sieves compliant with ISO 3310-1, and a glass beaker. Water used must conform to EN ISO 3696:1995 for laboratory grade.

• Testing Procedure
  The procedure entails preparing the sample according to EN 1482-2, determining initial moisture content by EN 12048, stirring the test sample in water at 600 rpm for 10 minutes, wet sieving the residue, drying sieved fractions, and quantifying masses to calculate the extent of breakdown.

• Calculations and Results
  Mass fractions passing through specified sieves (100 µm and 315 µm) are calculated to express the degree of breakdown, which informs on the physical stability of the liming materials under moisture conditions.

• Precision and Reproducibility
  The standard includes data on repeatability and reproducibility from inter-laboratory tests, ensuring reliable and comparable results among different facilities.

• Reporting Requirements
  The test report must include sample identification, test dates, reference to EN 15704:2008, test results with units, sieve sizes used, and any unusual observations during testing.

Applications

• Quality Control in Lime Production
  EN 15704:2008 is essential for producers of granulated liming materials to assess product durability and consistency against moisture breakdown, directly impacting storage and handling characteristics.

• Soil Amendment Performance Evaluation
  The standard helps agronomists and soil scientists evaluate how quickly and effectively liming products will release active components in the field when water interacts with granules.

• Regulatory Compliance and Certification
  Enables regulatory bodies and certification organizations across Europe to standardize testing protocols for liming materials, supporting uniform product standards and consumer trust.

• Research and Development
  Laboratories engaged in developing new liming formulations or improving granule stability use the standard's methodology to benchmark water resistance and breakdown behavior.

Related Standards

• EN 1482-1 and EN 1482-2 – Methods for sampling and sample preparation of fertilizers and liming materials. Critical for ensuring representative and properly prepared test samples for EN 15704 procedures.

• EN 12048 – Procedure for determining moisture content in solid fertilizers and liming materials by gravimetric drying, necessary for adjusting test results.

• EN 12948 – Specifies methods for size distribution by dry and wet sieving which complements the sieving step in EN 15704.

• ISO 3310-1 – Defines technical requirements for test sieves used in the breakdown measurement, ensuring standardized sieve apertures.

• EN 12944 Series – Provides vocabulary and terminology related to fertilizers and liming materials, which underpins consistency in terminology across related standard documents.

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By adhering to EN 15704:2008, stakeholders in the agricultural and fertilizer industries can accurately determine the breakdown behavior of granulated calcium and calcium/magnesium carbonates under water exposure, ensuring product quality and efficacy in soil treatment applications. This promotes standardized quality assessment, regulatory compliance, and optimized soil management practices across Europe.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LQCalcium-/Magnesium-Bodenverbesserungsmittel - Bestimmung des Zerfalls von granulierten Calcium- und Calcium-/Magnesiumcarbonaten unter WassereinwirkungAmendements minéraux basiques - Détermination du délitage a l'eau de carbonates de calcium et carbonates de calcium/magnésium granulésLiming materials - Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15704:2008SIST EN 15704:2009en,fr,de01-junij-2009SIST EN 15704:2009SLOVENSKI
STANDARD
SIST EN 15704:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15704December 2008ICS 65.080 English VersionLiming materials - Determination of the breakdown of granulatedcalcium and calcium/magnesium carbonates under the influenceof waterAmendements minéraux basiques - Détermination dudélitage à l'eau de carbonates de calcium et carbonates decalcium/magnésium granulésCalcium-/Magnesium-Bodenverbesserungsmittel -Bestimmung des Zerfalls von granulierten Calcium- undCalcium-/Magnesiumcarbonaten unter WassereinwirkungThis European Standard was approved by CEN on 15 November 2008.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 15704:2008: ESIST EN 15704:2009

SIST EN 15704:2009
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