SIST EN 15928:2010

• Abstract:

  This European Standard specifies the dry procedure for the determination of the fineness of grinding, which is applicable to all EC type fertilizers in which requirements are given of fineness of grinding using 0,630 mm and 0,160 mm.

• Status: Published
• Public Enquiry End Date: 19-Aug-2009
• Publication Date: 18-Nov-2010
• ICS: 65.080 - Fertilizers
• Technical Committee: KAT - Soil quality
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Nov-2010
• Due Date: 10-Jan-2011
• Completion Date: 19-Nov-2010
• Directive: 2003/2003 - Regulation (EC) N° 2003/2003 of the European Parlament and of the council of 13 October 2003 relating to fertilisers
• Mandate: M/335 - Standardization Mandate assigned to the CEN concerning the modernisation of the methods of anylysis of Fertilizers
• Ref Project: EN 15928:2010 - Fertilizers - Determination of the fineness of grinding (dry procedure)

• Refers: SIST ISO 3310-1:2002 - Test sieves -- Technical requirements and testing -- Part 1: Test sieves of metal wire cloth
• Effective Date: 22-Apr-2026
• Refers: SIST EN 12944-2:2002 - Fertilizers and liming materials and soil improvers - Vocabulary - Part 2: Terms relating to fertilizers
• Effective Date: 28-Jan-2026
• Refers: SIST EN 12944-1:2002 - Fertilizers and liming materials and soil improvers - Vocabulary - Part 1: General terms
• Effective Date: 28-Jan-2026
• Refers: SIST EN 1482-2:2025 - Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 2: General sample preparation provisions
• Effective Date: 28-Jan-2026
• Refers: SIST EN 15316-4-5:2007 - Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-5: Space heating generation systems, the performance and quality of district heating and large volume systems
• Effective Date: 28-Jan-2026

Overview

EN 15928:2010 is a CEN (European) standard that defines the dry procedure for determination of the fineness of grinding of fertilizers. It applies to EC-type fertilizers where fineness requirements are specified using sieve apertures of 0.630 mm and 0.160 mm. The method uses mechanical sieve shaking to separate coarse, intermediate and fine fractions and expresses fineness as percent by mass.

Key topics and requirements

• Scope: Applicable to fertilizers covered by EC rules that specify fineness criteria using 0.630 mm and 0.160 mm sieves.
• Apparatus: Mechanical sieve shaker and test sieves (200 mm diameter, 50 mm height) complying with ISO 3310-1.
• Sample size and preparation: Typical test portion ≈ 50 g, prepared in accordance with EN 1482-2 (sample preparation). Sampling itself is addressed elsewhere (EN 1482-1).
• SIEVING PROCEDURE:
  • Stack sieves with 0.630 mm on top, 0.160 mm below, and a collecting pan.
  • Sieve for 10 minutes, then run additional 1-minute intervals until the material collected in the pan during one minute is ≤ 250 mg.
  • Weigh residues on each sieve separately to the nearest 0.05 g.
• Calculations:
  • Let M = mass of test portion; M1 = residue on 0.630 mm sieve; M2 = residue on 0.160 mm sieve.
  • Fineness passing 0.630 mm: F0.630 = ((M − M1) / M) × 100
  • Fineness passing 0.160 mm: F0.160 = ((M − M1 − M2) / M) × 100
  • Results are rounded to the nearest unit (percent).
• Reporting: Test report must reference EN 15928:2010 and include sample identification, sampling/preparation details, dates, results (percent fineness), and any test deviations or incidents.

Practical applications and users

• Quality control and R&D labs in fertilizer manufacturing to verify particle-size specifications.
• Regulatory bodies and notified bodies assessing compliance with EC fertilizer regulations.
• Third-party testing and inspection laboratories for conformity assessment, import/export checks, and certification.
• Agronomists and product managers concerned with product performance attributes influenced by particle size (e.g., dissolution, spreading uniformity).

Related standards

• EN 1482-1 / EN 1482-2 - Sampling and sample preparation for fertilizers and liming materials
• ISO 3310-1 - Test sieves (technical requirements)
• Regulation (EC) No 2003/2003 - Fertiliser Regulation (reference to methods)

Keywords: EN 15928:2010, fertilizers standard, fineness of grinding, dry procedure, sieve 0.630 mm, sieve 0.160 mm, mechanical sieve shaker, fertilizer quality control, CEN.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Bestimmung der Mahlfeinheit (trockenes Verfahren)Engrais - Détermination de la finesse de mouture (procédé à sec)Fertilizers - Determination of the fineness of grinding (dry procedure)65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15928:2010SIST EN 15928:2010en,fr,de01-december-2010SIST EN 15928:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15928
August 2010 ICS 65.080 English Version
Fertilizers - Determination of the fineness of grinding (dry procedure)
Engrais - Détermination de la finesse de mouture (procédé à sec)
Düngemittel - Bestimmung der Mahlfeinheit (trockenes Verfahren) This European Standard was approved by CEN on 16 July 2010.
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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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