EN 13299:2000

Fertilizers - Determination of flow rate

This European Standard specifies a method for the determination of the flow rate of free flowing solid fertilizers. The method is not applicable to powder materials (< 0,5 mm) or liming materials.

Düngemittel - Bestimmung der Fließkennzahl

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Fließkennzahl frei fließender fester Düngemittel fest. Das Verfahren gilt nicht für Substanzen in Pulverform (<0,5mm) oder Ca/Mg-Bodenverbesserungsmittel.

Engrais - Détermination du taux d'écoulement

La présente norme européenne fixe une méthode de détermination du taux d'écoulement des engrais solides à écoulement fluide. Cette méthode n'est applicable ni aux produits en poudre (< 0,5 mm) ni aux amendements calciques et/ou magnésiens.

Gnojila - Določevanje hitrosti (stopnje) pretoka

General Information

• Status: Published
• Publication Date: 15-Feb-2000
• Withdrawal Date: 30-Aug-2000
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 2 - Physical properties of fertilizers
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 22-Nov-2025
• Completion Date: 03-Dec-2025
• Ref Project: SIST EN 13299:2002 - Fertilizers - Determination of flow rate

Overview

EN 13299:2000 (CEN) - "Fertilizers - Determination of flow rate" - specifies a standardized method to measure the flow rate of free‑flowing solid fertilizers. The standard is intended for quality assessment and performance characterization of granular fertilizers but is not applicable to powder materials (< 0.5 mm) or to liming materials. By defining a repeatable procedure, EN 13299 helps ensure consistent handling, dosing and application performance across production batches.

Key Topics

• Scope and applicability: method applies to free‑flowing solid fertilizers; explicitly excludes powders below 0.5 mm and liming materials.
• Measurement objective: standardized determination of fertilizer flow rate / flowability to support quality control and specification compliance.
• Test method framework: specifies a defined procedure covering sample preparation, test sequence, measurement and calculation of flow rate (procedure details contained in the standard text).
• Reporting and units: requirements for how results are calculated and presented to ensure comparability between laboratories and manufacturers.
• Environmental and handling considerations: addresses the importance of controlled test conditions (e.g., agitation, humidity) that affect fertilizer flow behaviour.

Applications

• Quality control in fertilizer manufacturing - to monitor batch consistency and detect issues affecting flowability.
• Product development and formulation - to evaluate how granule size, coating or additives influence dispensing and spreading.
• Pack design and filling operations - to optimize hopper, silo and packaging equipment based on measured flow characteristics.
• Procurement and specification compliance - to include objective flow rate criteria in supply contracts and technical datasheets.
• Test laboratories and conformity assessment - for reproducible, comparable test results used in certification and regulatory review.

Who Uses This Standard

• Fertilizer manufacturers (production, R&D, QC)
• Independent testing and calibration laboratories
• Equipment suppliers (hoppers, spreaders, dosing systems)
• Agricultural extension services and agronomists advising on application equipment
• Regulatory bodies and conformity assessment organizations

Related Standards

EN 13299 is part of the broader body of CEN/CENELEC standards on fertilizer characterization and testing. It is commonly used alongside standards for particle size analysis, moisture content, and other fertilizer quality parameters to provide a full technical profile of a product.

By applying EN 13299:2000, stakeholders gain a reproducible, industry‑accepted method for assessing fertilizer flow rate-critical for production efficiency, accurate application and end‑user satisfaction.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Bestimmung der FließkennzahlEngrais - Détermination du taux d'écoulementFertilizers - Determination of flow rate65.080GnojilaFertilizersICS:Ta slovenski standard je isto
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