CR 14539:2002

Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)

Preparation of a European Standard test method for the determination of fuel-oil retention of straight ammonium nitrate fertilizers having a content of ammonium nitrate of more than 80u before or after thermal pre-treatment.

Reine Ammoniumnitratdünger - Bestimmung der Porosität (Ölretention)

Engrais simples à base de nitrate d'ammonium - Etude comparative de méthodes de détermination de la porosité (rétention fuel)

Čista amonnitratna gnojila – Primerjalna študija o določevanju poroznosti (zadrževanje olja)

General Information

• Status: Withdrawn
• Publication Date: 06-Aug-2002
• Withdrawal Date: 01-Jun-2021
• 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: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 02-Jun-2021
• Ref Project: SIST-TR CR 14539:2003 - Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)

Relations

• Replaced By: CEN/TR 14539:2021 - Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)
• Effective Date: 09-Jun-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TR CR 14539:2003
01-oktober-2003
ýLVWDDPRQQLWUDWQDJQRMLOD±3ULPHUMDOQDãWXGLMDRGRORþHYDQMXSRUR]QRVWL
]DGUåHYDQMHROMD
Straight ammonium nitrate fertilizers - Comparative study on the determination of
porosity (oil retention)
Reine Ammoniumnitratdünger - Bestimmung der Porosität (Ölretention)
Engrais simples a base de nitrate d'ammonium - Etude comparative de méthodes de
détermination de la porosité (rétention fuel)
Ta slovenski standard je istoveten z: CR 14539:2002
ICS:
65.080 Gnojila Fertilizers
SIST-TR CR 14539:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TR CR 14539:2003

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SIST-TR CR 14539:2003
CEN REPORT
CR 14539
RAPPORT CEN
CEN BERICHT
August 2002
ICS
English version
Straight ammonium nitrate fertilizers - Comparative study on the
determination of porosity (oil retention)
Engrais simples à base de nitrate d'ammonium - Etude
comparative de méthodes de détermination de la porosité
(rétention fuel)
This CEN Report was approved by CEN on 13 April 2002. It has been drawn up by the Technical Committee CEN/TC 260.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. CR 14539:2002 E
worldwide for CEN national Members.

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SIST-TR CR 14539:2003
CR 14539:2002 (E)
Contents
Foreword.3
1 Scope .4
2 Test procedure .4
3 Results and statistical interpretation.5
4 Conclusions.6
Annex A (informative) Characteristics of and limits for straight ammonium nitrate fertilizers of high
nitrogen content as given in EC Directive 80/876/EEC .7
Annex B (informative) Determination of oil retention — EC method as given in EC Directive 87/94/EEC.8
Annex C (informative) Centrifuge method – Non-standardized alternative method .11
Annex D (informative) Roller drum method – Non-standardized alternative method .14
Bibliography .17
2

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SIST-TR CR 14539:2003
CR 14539:2002 (E)
Foreword
This document (CR 14539:2002) has been prepared by Technical Committee CEN/TC 260, "Fertilizers and liming
materials", the secretariat of which is held by DIN.
It is published for information only and does not have the status of a European Standard.
The annexes A to D are informative.
3

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SIST-TR CR 14539:2003
CR 14539:2002 (E)
Introduction
Straight ammonium nitrate fertilizers of high nitrogen content (> 28 %), following Directive 80/876/EEC [1] and
Directive 87/94/EEC [2], are subject to the particular regulatory requirement of a maximum porosity limit of 4 %.
The currently used official EC method is demanding with respect to time and skilled laboratory manpower.
Therefore CEN/TC 260 agreed to launch a new Work Item, in order to compare non-standardized alternative
methods for measuring porosity with the official one, through ring testing.
Parallelly, oil retention can also be determined by ISO 5313.
1 Scope
This CEN report gives the results of inter-laboratory testing to compare the accuracy and convenience of the official
EC method for porosity measurement (given as Annex B) with two non-standardized alternative methods (given as
Annexes C and D) already used in some participating laboratories.
Three products, with a porosity between 1 % and 7 %, have been used in the inter-laboratory trials.
2 Test proce
...